Cut-Out Exhaust Setup ?
02-11-2007, 07:18 PM
#1
Cut-Out Exhaust Setup ?
Any1 have any setups they can share? I am interested in getting a cut-out and would like to know how/where it was installed.
Would you be able to use the cut-out's y-pipe to weld and use in place of the cat ?
Any1 have any pics, ideas, pointers on install ?
Would you be able to use the cut-out's y-pipe to weld and use in place of the cat ?
Any1 have any pics, ideas, pointers on install ?
02-11-2007, 07:31 PM
#4
it will be loud, and not help out a whole lot, maybe 1 whp. I gained 3 whp with mine being where the cat should be, and i only netted 3whp because I am SC'd. that and I have a good catback, cattman/stillen FTW. just invest in a good catback sytem.
02-12-2007, 07:45 AM
#6
Originally Posted by glenmoormax
it will be loud, and not help out a whole lot, maybe 1 whp. I gained 3 whp with mine being where the cat should be, and i only netted 3whp because I am SC'd. that and I have a good catback, cattman/stillen FTW. just invest in a good catback sytem.
Im confused, how did you
"net 3whp because I am SC'd. that and I have a good catback"?
With the cutout open the exhaust wouldnt even make it to the catback so why would its type matter? And with it closed there would be no gains with it.
I wouldve have thought it would give a boosted car quite a bit more then 3whp.
I would have thought the gains would be similiar to running a 3" exhaust.
Did you dyno comparison to determine that 3whp?
02-12-2007, 12:00 PM
#8
02-12-2007, 12:20 PM
#9
Originally Posted by XeroX
I was looking into this earlier this week as well. However i was planning on installing this in place of the cat, for a nitrous setup. Im assuming with a 75 shot or so, this might provide some gains while spraying...
Im very interested in hearing if anyone has tried this product out....might have better luck in the FI or nitrous section tho? just a thought...
Im very interested in hearing if anyone has tried this product out....might have better luck in the FI or nitrous section tho? just a thought...
yes, its been discussed in the FI section,..
http://forums.maxima.org/showthread.php?t=509301
http://forums.maxima.org/showthread....ghlight=cutout
http://forums.maxima.org/showthread....ghlight=cutout
And the cat section is where its normally mounted.
Im actually trying to find someone to put mine together. Most shops Ive gone to dont want to touch it.
Its basicly a test pipe with the cut out, welded onto it.
Fitment is tight, and most Ive talked to say that you cannot be too low or it will scrape.
02-12-2007, 03:55 PM
#11
we had a dyno day out here 6 months ago and Mike (an org member in a 5th gen) gained like 7-8 whp with it open with his NA de-k. i'm a believer in these things. easy hp at a flip of a switch. scary loud though!
02-12-2007, 04:02 PM
#12
What I think of big loud exhausts on an otherwise normal car:
It is a tale
Told by an idiot, full of sound and fury,
Signifying nothing.
William Shakespeare, Macbeth, act 5, scene 5
It is a tale
Told by an idiot, full of sound and fury,
Signifying nothing.
William Shakespeare, Macbeth, act 5, scene 5
02-12-2007, 04:08 PM
#13
Originally Posted by dgeesaman
What I think of big loud exhausts on an otherwise normal car:
It is a tale
Told by an idiot, full of sound and fury,
Signifying nothing.
William Shakespeare, Macbeth, act 5, scene 5
It is a tale
Told by an idiot, full of sound and fury,
Signifying nothing.
William Shakespeare, Macbeth, act 5, scene 5
02-12-2007, 04:14 PM
#14
Too bad this was a very informative thread untill you started pooping in here with irrelivant shakespeare quotes....do your research, this CAN provide gains...Maybe not for shakespeare... 
BTW, as for the fitment, is there any possibility that we may be able to have this welded farther down the exaust piping to avoid sacrificing so much ground clearance? or would this not provide as good of gains?
BTW, as for the fitment, is there any possibility that we may be able to have this welded farther down the exaust piping to avoid sacrificing so much ground clearance? or would this not provide as good of gains?
02-12-2007, 04:20 PM
#16
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Originally Posted by Fr33way™
Are you boosted? If not it is just annoying AND wont make any gain.
Im not boosted, I picked up around 6whp and 2tq from a cutout on the 3.0, and even more (over 10hp) with the 3.5...
It will not pick up much over a good catback, but there are gains. My b-pipe is not mandrel bent, but I do have a straight through muffler and I still gained that much with a cutout.
02-12-2007, 04:24 PM
#17
Originally Posted by Flava_24/7
Im confused, how did you
"net 3whp because I am SC'd. that and I have a good catback"?
With the cutout open the exhaust wouldnt even make it to the catback so why would its type matter? And with it closed there would be no gains with it.
I wouldve have thought it would give a boosted car quite a bit more then 3whp.
I would have thought the gains would be similiar to running a 3" exhaust.
Did you dyno comparison to determine that 3whp?
"net 3whp because I am SC'd. that and I have a good catback"?
With the cutout open the exhaust wouldnt even make it to the catback so why would its type matter? And with it closed there would be no gains with it.
I wouldve have thought it would give a boosted car quite a bit more then 3whp.
I would have thought the gains would be similiar to running a 3" exhaust.
Did you dyno comparison to determine that 3whp?
yes, I did, sorry to confuse, i guess i was thinking more in my head than i typed. I dynoed 3 whp less with out the open cutout. I was refferring to sc vs na part with me gaining more hp possibly because i am boosted, he isn't, so i would think it would give someone that is boosted more gains. My thread is in the dyno section. does that clear it up any?
02-12-2007, 04:56 PM
#18
Originally Posted by jac121479
unless you did some banging on the sheet metal, space is the same all the way back to the 90 degree bend right before the gas tank. ground clearance has to be sacrificed unfortunately.
There is actually a bit more space around the cat area.
02-12-2007, 04:57 PM
#19
Originally Posted by glenmoormax
yes, I did, sorry to confuse, i guess i was thinking more in my head than i typed. I dynoed 3 whp less with out the open cutout. I was refferring to sc vs na part with me gaining more hp possibly because i am boosted, he isn't, so i would think it would give someone that is boosted more gains. My thread is in the dyno section. does that clear it up any?
Your right, boosted cars would see a much bigger gain over NA
02-12-2007, 05:28 PM
#20
Originally Posted by Flava_24/7
There is actually a bit more space around the cat area.
02-12-2007, 06:29 PM
#21
Originally Posted by jac121479
thats normally where they're installed via a test pipe, but even then they have to be angled down some for clearance, sacrificing road clearance.
02-12-2007, 06:41 PM
#22
Originally Posted by 96sleeper
Im not boosted, I picked up around 6whp and 2tq from a cutout on the 3.0, and even more (over 10hp) with the 3.5...
It will not pick up much over a good catback, but there are gains. My b-pipe is not mandrel bent, but I do have a straight through muffler and I still gained that much with a cutout.
It will not pick up much over a good catback, but there are gains. My b-pipe is not mandrel bent, but I do have a straight through muffler and I still gained that much with a cutout.
02-12-2007, 07:29 PM
#23
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Join Date: Mar 2004
Posts: 320
i have my cut out installed before my cat (its still in place)
it actually sits on a y-pipe what i did is took out the extra long flex pipe section and replased it with a 4 inch flex section and that gave me just enough room do play around with
it actually sits on a y-pipe what i did is took out the extra long flex pipe section and replased it with a 4 inch flex section and that gave me just enough room do play around with
02-12-2007, 09:45 PM
#25
Originally Posted by I30_DRIVER
i have my cut out installed before my cat (its still in place)
it actually sits on a y-pipe what i did is took out the extra long flex pipe section and replased it with a 4 inch flex section and that gave me just enough room do play around with
it actually sits on a y-pipe what i did is took out the extra long flex pipe section and replased it with a 4 inch flex section and that gave me just enough room do play around with
sounds very interesting..
02-13-2007, 12:20 AM
#29
Originally Posted by Nealoc187
I gain about 40whp opening my cutout - even so, I'm getting rid of it because it because I hate it (the sound).
02-13-2007, 12:26 AM
#30
Originally Posted by Nealoc187
I gain about 40whp opening my cutout - even so, I'm getting rid of it because it because I hate it (the sound).
turbo will obviously affect the difference.
I will be dynoing the SC max again here soon, and will try it again with some more pulls to confirm if indeed the open cutout helps by 3whp or more, like i30krabs numbers...
02-13-2007, 03:40 AM
#31
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Originally Posted by Fr33way™
Did it change the shape of the curve slightly? or at all?
The shape of the curve was exactly the same, just more power everywhere. No loss at any rpm in torque or horsepower.
02-13-2007, 09:03 AM
#32
Originally Posted by i30krab
I don't understand. When it's closed isn't it quiet?
When it's open I hate it. I'm redoing my downpipe setup and I'm not going to include it when I redo it because I'm never going to open it again anyways.
02-13-2007, 09:27 AM
#33
Originally Posted by Nealoc187
When it's open I hate it. I'm redoing my downpipe setup and I'm not going to include it when I redo it because I'm never going to open it again anyways.
Whats wrong with the sound when its open? Just too loud? Everyone seems to like how mine sounds open. I running a 2.5" exhaust after the downpipe with a Dynomax Super Turbo Muffler (non-straight through) and I plan to get the wastegate rerouted into the downpipe so it stays quiet under full boost w/ cutout closed.
I gained over 30whp with the cutout open.
02-13-2007, 11:55 AM
#36
Originally Posted by mastercater7
where do yall buy the cutouts at? how much they usually run for?
http://www.quicktimeperformance.com/QTEC/
02-13-2007, 12:49 PM
#37
Originally Posted by Flava_24/7
02-14-2007, 06:43 PM
#39
Originally Posted by JeEvE
Whats wrong with the sound when its open? Just too loud? Everyone seems to like how mine sounds open. I running a 2.5" exhaust after the downpipe with a Dynomax Super Turbo Muffler (non-straight through) and I plan to get the wastegate rerouted into the downpipe so it stays quiet under full boost w/ cutout closed.
I gained over 30whp with the cutout open.
I gained over 30whp with the cutout open.
i don't know, it sounds like ****. I hate the sound of the VQ. You're asking aboutsomething that is purely opinion so that's all I can say.
02-14-2007, 06:46 PM
#40
Originally Posted by jac121479
Nice!!!!!!!!
He's turbocharged. NA cars are going to gain more like the 3hp being attested to. 7hp if you have a decent NA buildup like a cammed 3.5 like 96sleeper.