Exhaust Estimate 3.5 motor
11-06-2015, 07:08 AM
#1
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Exhaust Estimate 3.5 motor
SO i finally went to get an estimate on how much it will cost me to replace some components on my exhaust system today. I was a bit shocked at an estimate of over $1400. I have a 2002 I35, The cat near the firewall, and the y-pipe, the main cat, remove the rear exhaust manifold, pipe before the muffler. All those items they say need to be replaced, I looked under the car myself while it was in the air, most of the parts dont look as bad as i thought. If i use their expensive parts its $700 just for the rear pre cat, and the y-pipe. No way lol ill buy my own parts, its mainly just rusted where the pre cats bolt onto the y-pipe. Labor was est at $600.
11-06-2015, 08:09 AM
#3
SO i finally went to get an estimate on how much it will cost me to replace some components on my exhaust system today. I was a bit shocked at an estimate of over $1400. I have a 2002 I35, The cat near the firewall, and the y-pipe, the main cat, remove the rear exhaust manifold, pipe before the muffler. All those items they say need to be replaced, I looked under the car myself while it was in the air, most of the parts dont look as bad as i thought. If i use their expensive parts its $700 just for the rear pre cat, and the y-pipe. No way lol ill buy my own parts, its mainly just rusted where the pre cats bolt onto the y-pipe. Labor was est at $600.
This is the set up I got..
Last edited by NmexMAX; 11-24-2015 at 01:03 PM.
11-06-2015, 08:42 AM
#4
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Kool nice set up man, But the thing is those parts are not even rusted on my car/ at least not yet. Everything from the main cat back seems to be in good shape. Yes the Check engine light came on for P0420 a few weeks ago, rear pre- cat, So im assuming it is bad, but I erased the code, has not come back yet but that was a ridulous price to replace just a few parts. The y-pipe looks to be in ok shape but looks like the leak is in the flex pipe.
11-06-2015, 08:46 AM
#5
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You can get the whole rear section from the main cat back for $150. You can pick up a main cat for $50 and I'm sure the b pipe from the pre cats to the main cat isn't that expensive. No way would I pay $1400
11-06-2015, 11:20 AM
#6
Kool nice set up man, But the thing is those parts are not even rusted on my car/ at least not yet. Everything from the main cat back seems to be in good shape. Yes the Check engine light came on for P0420 a few weeks ago, rear pre- cat, So im assuming it is bad, but I erased the code, has not come back yet but that was a ridulous price to replace just a few parts. The y-pipe looks to be in ok shape but looks like the leak is in the flex pipe.
11-06-2015, 01:03 PM
#8
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Yeah That is crazy, like im getting a perfomance exhaust or something. I think ive seen a y-pipe for just under $150. Then the guy tells me the car only has 2 cats lol. Yes I am just going to get the part myself, and then go to another shop and see what their labor will be.
11-06-2015, 03:59 PM
#10
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You can get both precats for a hair under $300. I will be doing that to my daughters 03..
I am replacing my entire exhaust. I'm going with headers. I have the main cat replaced and then a cat back system. Mine is starting to look really bad
I am replacing my entire exhaust. I'm going with headers. I have the main cat replaced and then a cat back system. Mine is starting to look really bad
11-06-2015, 09:05 PM
#11
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I see a pace setter rear pre cat near the firewall part number 201102 for $134 on amazon, is that a good replacement? I see it does not come with the studs built in though.
under the car
y-pipe
anyone ever tried the bosal y-pipe part number 6710-05166995 its $165 on parts geek.com, if so does it come with the 02 sensor hole like the stock y-pipe?
Last edited by NmexMAX; 11-24-2015 at 01:04 PM.
11-16-2015, 06:51 AM
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11-16-2015, 08:59 AM
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Didn't fall off but it was just hanging there banging around. Pipe just rusted apart. I'm going to end up going full stainless. I ordered the stainless Megan racing cat back yesterday. I have a stainless main cat already. Now I just need is the obx stainless headers. It's going to have to wait a little though. Money is alway tight this time of year
11-16-2015, 02:10 PM
#16
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11-16-2015, 04:19 PM
#17
Front precat falls apart faster than rear, just a FYI. Replacing one won't save the engine.
Last edited by Child_uv_KoRn; 11-16-2015 at 04:23 PM.
11-16-2015, 04:44 PM
#18
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It's a waste of money (apply the cash elsewhere), gutting them doesn't make the car louder with stock catback, and secondary O2s are unrelated to engine operation (plus defoulers are cheap).
Front precat falls apart faster than rear, just a FYI. Replacing one won't save the engine.
Front precat falls apart faster than rear, just a FYI. Replacing one won't save the engine.
11-16-2015, 05:12 PM
#19
Well if it wont make the car louder by gutting them, then im all for it. Just keep getting a code for po420, leak in the flex pipe, so def going to replace that, Ill have to see what a shop will charge me to gut the precats. THanks for that advice. Car does not seem to be burning oil at this point, not going to talk too fast though.
The front falls out, usually. It's the rear that's a pain.
Last edited by Child_uv_KoRn; 11-16-2015 at 05:28 PM.
11-17-2015, 07:34 AM
#20
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So im either going to go with just replacing the whole y-pipe with a bosal brand, ive heard that the warp-speed brand is not a good fit, and possibly just replace the rear pre cat and main cat, but just inspect both and see what my options are, or just get a new flex pipe welded onto the oe y-pipe.
Last edited by NmexMAX; 11-24-2015 at 01:04 PM.
11-19-2015, 02:10 PM
#21
So im either going to go with just replacing the whole y-pipe with a bosal brand, ive heard that the warp-speed brand is not a good fit, and possibly just replace the rear pre cat and main cat, but just inspect both and see what my options are, or just get a new flex pipe welded onto the oe y-pipe.
Kind of pointless since you don't seem to care about power or noise (WHY NOT)
But is a solution that fixes everything. And I think it would be the same or cheaper than new cats/Y. Although, I guess there's possible fitment issues still with OBX.
Last edited by Child_uv_KoRn; 11-19-2015 at 02:18 PM.
11-19-2015, 04:31 PM
#22
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A real man installs headers
Kind of pointless since you don't seem to care about power or noise (WHY NOT)
But is a solution that fixes everything. And I think it would be the same or cheaper than new cats/Y. Although, I guess there's possible fitment issues still with OBX.
Kind of pointless since you don't seem to care about power or noise (WHY NOT)
But is a solution that fixes everything. And I think it would be the same or cheaper than new cats/Y. Although, I guess there's possible fitment issues still with OBX.
11-19-2015, 10:32 PM
#23
Dont get me wrong, i do love the deeper tone of the 3.5 and the power, but is bosal a good brand of y-pipe? Im all for making extra power, but want to keep the noise to a minimum, and who knows maybe in the future ill install headers, but just for now I want to make sure i get it running in top shape. But will i sacrifice low end power with a bosal y-pipe? will it make more noise? Ive heard people saying they deleted both pre cats, just to hear the car make a pop sound on deceleration, is that tru?
I've had headers/gutted cat with stock catback and know a car with all three cats gutted and stock catback. The only thing it did soundwise was give a slight bit of throatiness, but still very quiet. Think G35 exhaust. Power increase was definitely noticeable. I bet it makes a lot more under the curve.
If your Y doesn't have deep rust and only the flex is bad, then just have a new flex spliced in and save even more money.
Last edited by Child_uv_KoRn; 11-19-2015 at 10:34 PM.
11-20-2015, 02:24 AM
#24
Dont get me wrong, i do love the deeper tone of the 3.5 and the power, but is bosal a good brand of y-pipe? Im all for making extra power, but want to keep the noise to a minimum, and who knows maybe in the future ill install headers, but just for now I want to make sure i get it running in top shape. But will i sacrifice low end power with a bosal y-pipe? will it make more noise? Ive heard people saying they deleted both pre cats, just to hear the car make a pop sound on deceleration, is that tru?
I think there may be some confusion of noises when compared to which cats are deleted. The pre-cats are in the Y-pipe. Gut them. Any increase in noise due to gutting those alone should be minimal, because the main cat, the big one, is still there further down the chain.
The OTHER CAT, the main cat under the car, now the deletion of that one can significantly change the sound of the car. Leave that one as is.
I'm willing to bet that the pop sound on deceleration came from a guy who had gutted the main cat as well as the pre cats, and perhaps said that he gutted the cats, leaving some ambiguity in his statement/observation.
11-20-2015, 02:51 AM
#25
I think there may be some confusion of noises when compared to which cats are deleted. The pre-cats are in the Y-pipe. Gut them. Any increase in noise due to gutting those alone should be minimal, because the main cat, the big one, is still there further down the chain.
The OTHER CAT, the main cat under the car, now the deletion of that one can significantly change the sound of the car. Leave that one as is.
I'm willing to bet that the pop sound on deceleration came from a guy who had gutted the main cat as well as the pre cats, and perhaps said that he gutted the cats, leaving some ambiguity in his statement/observation.
The OTHER CAT, the main cat under the car, now the deletion of that one can significantly change the sound of the car. Leave that one as is.
I'm willing to bet that the pop sound on deceleration came from a guy who had gutted the main cat as well as the pre cats, and perhaps said that he gutted the cats, leaving some ambiguity in his statement/observation.
Last edited by Child_uv_KoRn; 11-20-2015 at 02:54 AM.
11-20-2015, 02:59 AM
#26
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I don't see why bosal wouldn't be fine. Nothing you do with a stock catback is going to reduce low end, imo. Small tubing equals high velocity.
I've had headers/gutted cat with stock catback and know a car with all three cats gutted and stock catback. The only thing it did soundwise was give a slight bit of throatiness, but still very quiet. Think G35 exhaust. Power increase was definitely noticeable. I bet it makes a lot more under the curve.
If your Y doesn't have deep rust and only the flex is bad, then just have a new flex spliced in and save even more money.
I've had headers/gutted cat with stock catback and know a car with all three cats gutted and stock catback. The only thing it did soundwise was give a slight bit of throatiness, but still very quiet. Think G35 exhaust. Power increase was definitely noticeable. I bet it makes a lot more under the curve.
If your Y doesn't have deep rust and only the flex is bad, then just have a new flex spliced in and save even more money.
11-20-2015, 06:12 AM
#27
I bet the chambered muffler reduced what would have been a snap, crackle and pop on lifting the throttle, to a poof poof. Had it been a straight through muffler.......I wouldn't want to be behind you when you take your foot off the gas
Last edited by dwapenyi; 11-20-2015 at 06:21 AM.
11-20-2015, 07:23 AM
#28
That poof poof is the pop pop......muffled I bet the chambered muffler reduced what would have been a snap, crackle and pop on lifting the throttle, to a poof poof. Had it been a straight through muffler.......I wouldn't want to be behind you when you take your foot off the gas
I bet the chambered muffler reduced what would have been a snap, crackle and pop on lifting the throttle, to a poof poof. Had it been a straight through muffler.......I wouldn't want to be behind you when you take your foot off the gas
11-20-2015, 07:09 PM
#29
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I think there may be some confusion of noises when compared to which cats are deleted. The pre-cats are in the Y-pipe. Gut them. Any increase in noise due to gutting those alone should be minimal, because the main cat, the big one, is still there further down the chain.
The OTHER CAT, the main cat under the car, now the deletion of that one can significantly change the sound of the car. Leave that one as is.
I'm willing to bet that the pop sound on deceleration came from a guy who had gutted the main cat as well as the pre cats, and perhaps said that he gutted the cats, leaving some ambiguity in his statement/observation.
The OTHER CAT, the main cat under the car, now the deletion of that one can significantly change the sound of the car. Leave that one as is.
I'm willing to bet that the pop sound on deceleration came from a guy who had gutted the main cat as well as the pre cats, and perhaps said that he gutted the cats, leaving some ambiguity in his statement/observation.
11-22-2015, 02:28 PM
#30
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flex pipe replacement
Maxinout - Were you able to source this part. Found a universal on Amazon 2.5" X 8" X 12", not sure of the dimensions required.
11-23-2015, 12:44 AM
#31
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no i havent found one yet, i thought that most exhaust shops would carry it or at least be able to weld in a peice of pipe for the broken flex section.
11-23-2015, 02:23 PM
#32
If you go to something like speed shop or one known to do custom exhausts, then you'll be fine. But if you're talking someplace ultra cheap like midas or w/e, they don't have crap.
11-24-2015, 01:27 AM
#33
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Good luck if you think they'll have one. They'll stick one that's 2" on it b/c that's what most seem to carry.
If you go to something like speed shop or one known to do custom exhausts, then you'll be fine. But if you're talking someplace ultra cheap like midas or w/e, they don't have crap.
If you go to something like speed shop or one known to do custom exhausts, then you'll be fine. But if you're talking someplace ultra cheap like midas or w/e, they don't have crap.
12-02-2015, 07:29 AM
#36
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I've gutted my cats(yes all 3 of them) and as far as sound goes it's a tap louder but not bad at all-but the engine pull is way harder compared to before,and I do have the 02 extenders no CEL,but I may just put the main cat back on(new one) just so I'll be somewhat legal-lol
12-03-2015, 05:16 AM
#38
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Im eagerly ready to get rid of my cats. Going with an obx header so I can have a full stainless exhaust system. My megan cat back hasn't shipped yet. Uhg....
Now does anyone know if you need a programmer to get air fuel ratios right after a header install to see any significant power gains?
Now does anyone know if you need a programmer to get air fuel ratios right after a header install to see any significant power gains?
12-03-2015, 07:26 AM
#39
Hippies think cats help the air. They don't, really. It's a waste of precious metals.
15 ocean ships pollute the same as all the cars in the world (SOx wise). One big ship will pollute as much as 50 million cars. Emissions testing is a scam. Notice how regulations don't apply to stuff that generates lots of revenue, is owned by corporations or is just really dirty in general.
Hell, people have passed sniffer tests with no cats on well running VQs (I imagine a lot of good motors can).
Last edited by Child_uv_KoRn; 12-03-2015 at 07:41 AM.
12-03-2015, 07:18 PM
#40
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There's no point to that. If you want to keep it, then just clean it. Think saving money, not wasting it on useless parts
Hippies think cats help the air. They don't, really. It's a waste of precious metals.
15 ocean ships pollute the same as all the cars in the world (SOx wise). One big ship will pollute as much as 50 million cars. Emissions testing is a scam. Notice how regulations don't apply to stuff that generates lots of revenue, is owned by corporations or is just really dirty in general.
Hell, people have passed sniffer tests with no cats on well running VQs (I imagine a lot of good motors can).
Hippies think cats help the air. They don't, really. It's a waste of precious metals.
15 ocean ships pollute the same as all the cars in the world (SOx wise). One big ship will pollute as much as 50 million cars. Emissions testing is a scam. Notice how regulations don't apply to stuff that generates lots of revenue, is owned by corporations or is just really dirty in general.
Hell, people have passed sniffer tests with no cats on well running VQs (I imagine a lot of good motors can).