Cattman VQ30DE headers
Cattman VQ30DE headers
The new Cattman header/downpipe sets for the VQ30DE Maxima/I30 are ready and should arrive at our warehouse on Thursday. Although they will fit all VQ30DE engines, the O2 ports are set up for all 1995-1998 Maximas/I30s, and 1999-2001 Maximas/I30s with Federal emissions. They do not have the O2 sensor ports for the 1999-2001 Maximas/I30s with CA/NLEV emissions, but will fit so if you're the adventurous type... (but the next batch will include these elements).
The headers are made of carbon steel because stainless was unaffordable, so they have been ceramic coated inside and out by HPC Coatings, to give them the essential thermal containment properties and corrosion resistance of stainless, plus much lower friction than s/s along the tubing walls; they also carry HPC's lifetime warranty. It also gives them a beautiful, lustrous, silver finish. Overthick flanges, equal length secondaries, a beautiful under-the-hood appearance, and the sound...
Once you've heard these, you'll find out just how nice this V6 really can sound, its pure ecstasy.
The set is complete from the engine to the cat, replacing the stock manifolds and y-pipe. There is no possibility of using just the headers with another y-pipe. It is not a scheme to make your y-pipe obsolete, it is because the front and rear downpipes on a y-pipe are not of equal length (nor do they need to be since the tubing upstream from them is not equal length); even if that wasn't an issue the top of the downpipes are so high that there isn't room for the primary runners.
I have a set on my old 100+k '97, and did a before and after dyno, comparing the headers with a stock y-pipe. The car had an intake and exhaust. Many will wish that was a comparison with a performance y-pipe, but the circumstances were limiting at the time and there was no possibility of a three-way test. Since it had to be one or the other I decided that the stock pipe is a better baseline since aftermarket y-pipes vary in the power they make.
On my somewhat tired engine, a non-ceramic-coated prototype added 16+hp at peak, 18+ hp off-peak, at the wheel. I've heard some pretty rediculous claims for y-pipes over the years, but under similar circumstances I would expect around 10hp more at peak, 12hp more off-peak, so my crude reckoning estimates a 40-50% power advantage over the "typical" performance y-pipe on a car with basic bolt-ons. I'm sure there will be a fair bit of testing once these are available. For a copy of the graph and a spreadsheet with the #s in table form, write me at bcatts@earthlink.net.
Based on my experience the HPC-coating should add an additional 2-3 hp. They will certainly do better on a stronger engine (particularly the 225hp versions) and should really open things up for seriously built motors. No point in further speculation, but I won't be surprised if 20hp gains are pretty commonplace. Nissan's stock header design is not that bad, and 18-20hp is a significant accomplishment. No matter what anyone may say about their y-pipe -- and I know y-pipes as well as anybody since Cattman was first-to-market with one five years ago -- they don't make anything close to that kind of power under normal circumstances.
Price for the headers is $750, and a full gasket and hardware set is an additional $20 (everything you need, including the two expensive manifold gaskets). There are only about a dozen uncommitted sets in the batch that I expect by the end of the week and orders can be placed in advance at 800.759.9920. We will not charge credit cards until shipped.
That's about all the information I can provide. I'll be available to answer questions through Thursday, but have to leave the country on business till later in the month -- I'll be in touch, but won't have the time for correspondence I do now. Pictures will be available if these get here before leave on Friday, but I don't have any with the silver ceramic coating yet. These are not mentioned on our current website, but will be on the new one, which is in the final stages of development.
Brian C Catts
Cattman Performance
www.cattman.com
bcatts@cattman.com
The headers are made of carbon steel because stainless was unaffordable, so they have been ceramic coated inside and out by HPC Coatings, to give them the essential thermal containment properties and corrosion resistance of stainless, plus much lower friction than s/s along the tubing walls; they also carry HPC's lifetime warranty. It also gives them a beautiful, lustrous, silver finish. Overthick flanges, equal length secondaries, a beautiful under-the-hood appearance, and the sound...
Once you've heard these, you'll find out just how nice this V6 really can sound, its pure ecstasy.
The set is complete from the engine to the cat, replacing the stock manifolds and y-pipe. There is no possibility of using just the headers with another y-pipe. It is not a scheme to make your y-pipe obsolete, it is because the front and rear downpipes on a y-pipe are not of equal length (nor do they need to be since the tubing upstream from them is not equal length); even if that wasn't an issue the top of the downpipes are so high that there isn't room for the primary runners.
I have a set on my old 100+k '97, and did a before and after dyno, comparing the headers with a stock y-pipe. The car had an intake and exhaust. Many will wish that was a comparison with a performance y-pipe, but the circumstances were limiting at the time and there was no possibility of a three-way test. Since it had to be one or the other I decided that the stock pipe is a better baseline since aftermarket y-pipes vary in the power they make.
On my somewhat tired engine, a non-ceramic-coated prototype added 16+hp at peak, 18+ hp off-peak, at the wheel. I've heard some pretty rediculous claims for y-pipes over the years, but under similar circumstances I would expect around 10hp more at peak, 12hp more off-peak, so my crude reckoning estimates a 40-50% power advantage over the "typical" performance y-pipe on a car with basic bolt-ons. I'm sure there will be a fair bit of testing once these are available. For a copy of the graph and a spreadsheet with the #s in table form, write me at bcatts@earthlink.net.
Based on my experience the HPC-coating should add an additional 2-3 hp. They will certainly do better on a stronger engine (particularly the 225hp versions) and should really open things up for seriously built motors. No point in further speculation, but I won't be surprised if 20hp gains are pretty commonplace. Nissan's stock header design is not that bad, and 18-20hp is a significant accomplishment. No matter what anyone may say about their y-pipe -- and I know y-pipes as well as anybody since Cattman was first-to-market with one five years ago -- they don't make anything close to that kind of power under normal circumstances.
Price for the headers is $750, and a full gasket and hardware set is an additional $20 (everything you need, including the two expensive manifold gaskets). There are only about a dozen uncommitted sets in the batch that I expect by the end of the week and orders can be placed in advance at 800.759.9920. We will not charge credit cards until shipped.
That's about all the information I can provide. I'll be available to answer questions through Thursday, but have to leave the country on business till later in the month -- I'll be in touch, but won't have the time for correspondence I do now. Pictures will be available if these get here before leave on Friday, but I don't have any with the silver ceramic coating yet. These are not mentioned on our current website, but will be on the new one, which is in the final stages of development.
Brian C Catts
Cattman Performance
www.cattman.com
bcatts@cattman.com
Supporting Maxima.org Member
Joined: Nov 2000
Posts: 1,275
Originally Posted by Cattman
The new Cattman header/downpipe sets for the VQ30DE Maxima/I30 are ready and should arrive at our warehouse on Thursday. Although they will fit all VQ30DE engines, the O2 ports are set up for all 1995-1998 Maximas/I30s, and 1999-2001 Maximas/I30s with Federal emissions. They do not have the O2 sensor ports for the 1999-2001 Maximas/I30s with CA/NLEV emissions, but will fit so if you're the adventurous type... (but the next batch will include these elements).
The headers are made of carbon steel because stainless was unaffordable, so they have been ceramic coated inside and out by HPC Coatings, to give them the essential thermal containment properties and corrosion resistance of stainless, plus much lower friction than s/s along the tubing walls; they also carry HPC's lifetime warranty. It also gives them a beautiful, lustrous, silver finish. Overthick flanges, equal length secondaries, a beautiful under-the-hood appearance, and the sound...
Once you've heard these, you'll find out just how nice this V6 really can sound, its pure ecstasy.
The set is complete from the engine to the cat, replacing the stock manifolds and y-pipe. There is no possibility of using just the headers with another y-pipe. It is not a scheme to make your y-pipe obsolete, it is because the front and rear downpipes on a y-pipe are not of equal length (nor do they need to be since the tubing upstream from them is not equal length); even if that wasn't an issue the top of the downpipes are so high that there isn't room for the primary runners.
I have a set on my old 100+k '97, and did a before and after dyno, comparing the headers with a stock y-pipe. The car had an intake and exhaust. Many will wish that was a comparison with a performance y-pipe, but the circumstances were limiting at the time and there was no possibility of a three-way test. Since it had to be one or the other I decided that the stock pipe is a better baseline since aftermarket y-pipes vary in the power they make.
On my somewhat tired engine, a non-ceramic-coated prototype added 16+hp at peak, 18+ hp off-peak, at the wheel. I've heard some pretty rediculous claims for y-pipes over the years, but under similar circumstances I would expect around 10hp more at peak, 12hp more off-peak, so my crude reckoning estimates a 40-50% power advantage over the "typical" performance y-pipe on a car with basic bolt-ons. I'm sure there will be a fair bit of testing once these are available. For a copy of the graph and a spreadsheet with the #s in table form, write me at bcatts@earthlink.net.
Based on my experience the HPC-coating should add an additional 2-3 hp. They will certainly do better on a stronger engine (particularly the 225hp versions) and should really open things up for seriously built motors. No point in further speculation, but I won't be surprised if 20hp gains are pretty commonplace. Nissan's stock header design is not that bad, and 18-20hp is a significant accomplishment. No matter what anyone may say about their y-pipe -- and I know y-pipes as well as anybody since Cattman was first-to-market with one five years ago -- they don't make anything close to that kind of power under normal circumstances.
Price for the headers is $750, and a full gasket and hardware set is an additional $20 (everything you need, including the two expensive manifold gaskets). There are only about a dozen uncommitted sets in the batch that I expect by the end of the week and orders can be placed in advance at 800.759.9920. We will not charge credit cards until shipped.
That's about all the information I can provide. I'll be available to answer questions through Thursday, but have to leave the country on business till later in the month -- I'll be in touch, but won't have the time for correspondence I do now. Pictures will be available if these get here before leave on Friday, but I don't have any with the silver ceramic coating yet. These are not mentioned on our current website, but will be on the new one, which is in the final stages of development.
Brian C Catts
Cattman Performance
www.cattman.com
bcatts@cattman.com
The headers are made of carbon steel because stainless was unaffordable, so they have been ceramic coated inside and out by HPC Coatings, to give them the essential thermal containment properties and corrosion resistance of stainless, plus much lower friction than s/s along the tubing walls; they also carry HPC's lifetime warranty. It also gives them a beautiful, lustrous, silver finish. Overthick flanges, equal length secondaries, a beautiful under-the-hood appearance, and the sound...
Once you've heard these, you'll find out just how nice this V6 really can sound, its pure ecstasy.
The set is complete from the engine to the cat, replacing the stock manifolds and y-pipe. There is no possibility of using just the headers with another y-pipe. It is not a scheme to make your y-pipe obsolete, it is because the front and rear downpipes on a y-pipe are not of equal length (nor do they need to be since the tubing upstream from them is not equal length); even if that wasn't an issue the top of the downpipes are so high that there isn't room for the primary runners.
I have a set on my old 100+k '97, and did a before and after dyno, comparing the headers with a stock y-pipe. The car had an intake and exhaust. Many will wish that was a comparison with a performance y-pipe, but the circumstances were limiting at the time and there was no possibility of a three-way test. Since it had to be one or the other I decided that the stock pipe is a better baseline since aftermarket y-pipes vary in the power they make.
On my somewhat tired engine, a non-ceramic-coated prototype added 16+hp at peak, 18+ hp off-peak, at the wheel. I've heard some pretty rediculous claims for y-pipes over the years, but under similar circumstances I would expect around 10hp more at peak, 12hp more off-peak, so my crude reckoning estimates a 40-50% power advantage over the "typical" performance y-pipe on a car with basic bolt-ons. I'm sure there will be a fair bit of testing once these are available. For a copy of the graph and a spreadsheet with the #s in table form, write me at bcatts@earthlink.net.
Based on my experience the HPC-coating should add an additional 2-3 hp. They will certainly do better on a stronger engine (particularly the 225hp versions) and should really open things up for seriously built motors. No point in further speculation, but I won't be surprised if 20hp gains are pretty commonplace. Nissan's stock header design is not that bad, and 18-20hp is a significant accomplishment. No matter what anyone may say about their y-pipe -- and I know y-pipes as well as anybody since Cattman was first-to-market with one five years ago -- they don't make anything close to that kind of power under normal circumstances.
Price for the headers is $750, and a full gasket and hardware set is an additional $20 (everything you need, including the two expensive manifold gaskets). There are only about a dozen uncommitted sets in the batch that I expect by the end of the week and orders can be placed in advance at 800.759.9920. We will not charge credit cards until shipped.
That's about all the information I can provide. I'll be available to answer questions through Thursday, but have to leave the country on business till later in the month -- I'll be in touch, but won't have the time for correspondence I do now. Pictures will be available if these get here before leave on Friday, but I don't have any with the silver ceramic coating yet. These are not mentioned on our current website, but will be on the new one, which is in the final stages of development.
Brian C Catts
Cattman Performance
www.cattman.com
bcatts@cattman.com
One please!!!
Deac
Well that leaves me out of it then. I would like to do this setup, except since you are selling the whole thing as one piece and you did mention that the Cattman headers are different in length than stock, I would have to do some major change in my turbo piping to get this to fit.
Any plans on making just a basic header that will fit with the stock Y or even a Cattman Y? Or is there no benefit in the design since Nissan's is fairly well designed in the small header design that it already is.
Dixit
Any plans on making just a basic header that will fit with the stock Y or even a Cattman Y? Or is there no benefit in the design since Nissan's is fairly well designed in the small header design that it already is.
Dixit
Supporting Maxima.org Member
Joined: Nov 2000
Posts: 1,275
Originally Posted by BigDogJonx
Well that leaves me out of it then. I would like to do this setup, except since you are selling the whole thing as one piece and you did mention that the Cattman headers are different in length than stock, I would have to do some major change in my turbo piping to get this to fit.
Any plans on making just a basic header that will fit with the stock Y or even a Cattman Y? Or is there no benefit in the design since Nissan's is fairly well designed in the small header design that it already is.
Dixit
Any plans on making just a basic header that will fit with the stock Y or even a Cattman Y? Or is there no benefit in the design since Nissan's is fairly well designed in the small header design that it already is.
Dixit
Deac
Originally Posted by Deac
Wow Dixit... i didnt even think about that! All I saw was "HEADERS AVAILABLE for 2K1" I have a turbo too Brian... What can we turbo guys do BESIDES hacking up a kit we just paid $770 for?
Deac
Deac
For you it might be easier considering you have Nigel's kit and if you hacked up the Ypipe coming off the header, you could fit the turbo feed pipe on to that. But yes 100% understand on why hackup a $770 header/pipe?Me, I cant even think about hacking it up since my Y comes straight forward, no Uturn.
Dixit
Seriously, you TURBO guys need to forget about it and just turn up the FRIGGEN BOOOOOOST!
I mean unless you guys have serious lag or are pushing 500+whp, I think you'd be better off saving your money by cranking up the wick.
I mean unless you guys have serious lag or are pushing 500+whp, I think you'd be better off saving your money by cranking up the wick.
Originally Posted by BigDogJonx
yea yea yea, we just want the shiet.
Dixit
Dixit
Find something else to PIONEER then.
The BIGGEST advantage you turbo guys have is that you can keep increasing the boost as long as you can supply enough fuel, keep detonation at bay, and have the engine hold it all together. There is NO REASON you should be spending money on shiet when you haven't tapped out what you've already paid for!
If you got money to burn, throw some my way!
You 100% right there. I want to turn up the boost as well, but right now the turbo teardown has reached new levels of how bad this kit really is. You need to go to my website of www.bigdogjonx.com/fullpics/turbo/teardown to see what im talking about. Ive got so much work ahead of me... And also going to try to see if I can make the larger injectors that matt was talking about work using different plugs and eManage. Sorry dont mean to be thread jacking, i will take the rest off line.
Dixit
Dixit
Originally Posted by BigDogJonx
You 100% right there. I want to turn up the boost as well, but right now the turbo teardown has reached new levels of how bad this kit really is. You need to go to my website of www.bigdogjonx.com/fullpics/turbo/teardown to see what im talking about. Ive got so much work ahead of me... And also going to try to see if I can make the larger injectors that matt was talking about work using different plugs and eManage. Sorry dont mean to be thread jacking, i will take the rest off line.
Dixit
Dixit
Check my thread in the SC/TC forum.
Originally Posted by Deac
One please!!!
Deac
Deac
Brian C Catts
Cattman Performance
Originally Posted by BigDogJonx
Well that leaves me out of it then. I would like to do this setup, except since you are selling the whole thing as one piece and you did mention that the Cattman headers are different in length than stock, I would have to do some major change in my turbo piping to get this to fit.
Any plans on making just a basic header that will fit with the stock Y or even a Cattman Y? Or is there no benefit in the design since Nissan's is fairly well designed in the small header design that it already is.
Dixit
Any plans on making just a basic header that will fit with the stock Y or even a Cattman Y? Or is there no benefit in the design since Nissan's is fairly well designed in the small header design that it already is.
Dixit
Brian C Catts
Cattman Performance
Originally Posted by Cattman
The difficulty is that the downpipes stick up too high on the basic y-pipe -- not enough room to run the primary tubing -- plus the secondaries would be much different lengths. Use of any current y-pipe design would compromise the header design.
Brian C Catts
Cattman Performance
Brian C Catts
Cattman Performance
Originally Posted by Deac
Wow Dixit... i didnt even think about that! All I saw was "HEADERS AVAILABLE for 2K1" I have a turbo too Brian... What can we turbo guys do BESIDES hacking up a kit we just paid $770 for?
Deac
Deac
Well, its the challenge you'd face with adapting the turbo to any exhaust system. There would certainly be ways to tap into it but I'd need to better understand how the system you have installed was intended to work. Unless you're doing an assymetric arrangement, you must be getting your exhaust from some point after the 2-1 collector in the y-pipe unless you're bridging between the two exhaust streams in some way prior to that. The 2-1 collector in the headers is a few inches farther forward than stock or aftermarket y-pipes, if that's of any help.
Brian C Catts
Cattman Performance
Originally Posted by IceY2K1
Seriously, you TURBO guys need to forget about it and just turn up the FRIGGEN BOOOOOOST!
I mean unless you guys have serious lag or are pushing 500+whp, I think you'd be better off saving your money by cranking up the wick.
I mean unless you guys have serious lag or are pushing 500+whp, I think you'd be better off saving your money by cranking up the wick.
Alex may have a point here... But I'd still enjoy seeing one of these adapted to turbo.
BCC
Originally Posted by Cattman
Alex may have a point here... But I'd still enjoy seeing one of these adapted to turbo.
BCC
BCC
He's got PFI+VQ30DE plus he lives in Tucson, so if we could get you guys together, he *MIGHT* help out.
Originally Posted by BigDogJonx
Then any plans on selling just the headers for custom applications like me and Deac?
You know, its interesting that you should mention that, it hadn't occurred to me. No reason not to sell them separately, then you could just design around them. But once we have pics, take a look at the basic design and see if you can do something with it. Might be cheaper to include the downpipe and tap into it than to fabricate a new one -- I mean, not including the downpipe would probably only reduce the price by $250-300.
Brian C Catts
Cattman Performance
Very very interested here.. though I wasn't planning on spending the extra money on the car..
... let's assume I order the headers/pipe; if I don't see a 25fwhp increase (should be this at LEAST by a large margin on a boosted car), can I return them?
The reason I say 25fwhp to start is because after the y-pipe I went from running 15.3 to 14.5 at the track... on stock boost (automatic).
... let's assume I order the headers/pipe; if I don't see a 25fwhp increase (should be this at LEAST by a large margin on a boosted car), can I return them?
The reason I say 25fwhp to start is because after the y-pipe I went from running 15.3 to 14.5 at the track... on stock boost (automatic).
Originally Posted by 2k1maxgle
anyone got pics of these?
Brian C Catts
Cattman Performance
Originally Posted by Jer
Very very interested here.. though I wasn't planning on spending the extra money on the car..
... let's assume I order the headers/pipe; if I don't see a 25fwhp increase (should be this at LEAST by a large margin on a boosted car), can I return them?
The reason I say 25fwhp to start is because after the y-pipe I went from running 15.3 to 14.5 at the track... on stock boost (automatic).
... let's assume I order the headers/pipe; if I don't see a 25fwhp increase (should be this at LEAST by a large margin on a boosted car), can I return them?
The reason I say 25fwhp to start is because after the y-pipe I went from running 15.3 to 14.5 at the track... on stock boost (automatic).
25fwhp more than what you're getting with a y-pipe? Obviously there is no data from a boosted car, but I don't know how there could be that much of a difference.
Brian C Catts
Cattman Performance
I figured more could be expected since there is additional restriction given the added power. The same way a better ypipe yielded me nearly a second at the track, the headers could pose a restriction in the same fashion I'd have hoped that by getting your headers+ypipe that I'd see at least 25fwhp more than what I dyno in at now.
I'd have hoped that by getting your headers+ypipe that I'd see at least 25fwhp more than what I dyno in at now.
Hey Cattman,
Got a CA/NLEV spec engine. Let me know when the second batch is due to arrive. Might want to get the headers along with the cat back. Maybe include the RT Cat too? Got a price for the whole deal?
Got a CA/NLEV spec engine. Let me know when the second batch is due to arrive. Might want to get the headers along with the cat back. Maybe include the RT Cat too? Got a price for the whole deal?
Senior Member
Joined: Apr 2003
Posts: 293
From: The Bronx - 10461
Discount for those with CATTMAN y-pipe??
Hey Brian do us guys that already have ur Y-pipe get a discount on this new set-up?? I'de be pretty ****ed if I lost my nice new Y-pipe to a set of headers and another y-pipe.
Justin
Justin
Supporting Maxima.org Member
Joined: Nov 2000
Posts: 1,275
Originally Posted by Cattman
You know, its interesting that you should mention that, it hadn't occurred to me. No reason not to sell them separately, then you could just design around them. But once we have pics, take a look at the basic design and see if you can do something with it. Might be cheaper to include the downpipe and tap into it than to fabricate a new one -- I mean, not including the downpipe would probably only reduce the price by $250-300.
Brian C Catts
Cattman Performance
Brian C Catts
Cattman Performance
Can you really make this an option? That would be even better. Then for guys that just bought your y-pipe or we turbo guys that already have the down-pipe setup going, we can just buy the separate part we need and add extra piping as needed instead of buying the whole kit and having to cut it all up. BTW Brian, I had to convert to Fed-Spec to accommodate the turbo exhaust system.
Deac
Senior Member
Joined: Feb 2003
Posts: 221
[QUOTE The set is complete from the engine to the cat, replacing the stock manifolds and y-pipe. There is no possibility of using just the headers with another y-pipe. It is not a scheme to make your y-pipe obsolete, it is because the front and rear downpipes on a y-pipe are not of equal length (nor do they need to be since the tubing upstream from them is not equal length); even if that wasn't an issue the top of the downpipes are so high that there isn't room for the primary runners. QUOTE]
so let me get this straight,i have a cattman y pipe now, in order to get a set of these heders ill have to replace my cattman y with the downpipe that comes with this which i dont have a problem doing but will that downpipe give me the same 10hp that my old y was giving me in addition to the 16hp brian dynoed to his header??becase he did mention he dynoed the prototype header to a STOCK ypipe. because if this downpipe that comes with it doesnt add any more power than what the header does itself, it will be like takin out my old y and putting in this header all to give me a 16hp(header)-10(myold cattman y)=overall 6hp gain for $750 i dont think its worth it. So in other words we should all hope the pipe that comes with it elimites the precats. oh and i know u guys like my math skills
so let me get this straight,i have a cattman y pipe now, in order to get a set of these heders ill have to replace my cattman y with the downpipe that comes with this which i dont have a problem doing but will that downpipe give me the same 10hp that my old y was giving me in addition to the 16hp brian dynoed to his header??becase he did mention he dynoed the prototype header to a STOCK ypipe. because if this downpipe that comes with it doesnt add any more power than what the header does itself, it will be like takin out my old y and putting in this header all to give me a 16hp(header)-10(myold cattman y)=overall 6hp gain for $750 i dont think its worth it. So in other words we should all hope the pipe that comes with it elimites the precats. oh and i know u guys like my math skills
Originally Posted by clipse
Cattman, Sorry to get OT for a minute. I just wanted to know when will the y-pipe be available for 2002-2003 maxima's. Thanks.
Originally Posted by BLKMAX005SPD
So...the headers won't fit on a cali inspected car?
I guess they will fit.
In my case I could get it now or wait for the next batch w/ the o2 sensor. I prefer to wait and get the right specs.
Senior Member
Joined: Feb 2003
Posts: 221
Originally Posted by DonGfun
I'll by some 1s Y pipe if thats the case
Originally Posted by amaxeatinvtecs
yea if i have to take my y out ill set i instea of throwng it in the closet, what i dont understand is why didnt he do another dyno with the complete header/pipe set instead of doing it on the stock y