Gutted stock cats = great resonated test pipes
04-19-2005, 03:07 PM
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Gutted stock cats = great resonated test pipes
First of all, I wouldn't recommend doing this to your only set because you will likely run into problems at inspection/emissions or when you sell the car. I now have a 350Z and I still had the stock cats from my G35 that was totaled. After trying to sell them (cheap, $75 shipped BTW) for the last couple weeks I decided to just keep them and gut them out. After having the Borla exhaust + Kinetix resonated test pipes on my G35, the stock exhaust just wasn't very satisfying.
I am very pleased with the way things turned out. No SES light (early 04 model) and the rasp is almost non-existant. It sounds very similar to stock but is noticably louder at all RPM's. I still get a faint gas smell with the windows down at idle, but it doesn't seem to be as bad as my G35 with the Kinetix pipes. I might pick up a Borla exhaust if I can find a cheap used one because I do like the deeper tone, but right now this will keep me happy and best of all it was free.
I am very pleased with the way things turned out. No SES light (early 04 model) and the rasp is almost non-existant. It sounds very similar to stock but is noticably louder at all RPM's. I still get a faint gas smell with the windows down at idle, but it doesn't seem to be as bad as my G35 with the Kinetix pipes. I might pick up a Borla exhaust if I can find a cheap used one because I do like the deeper tone, but right now this will keep me happy and best of all it was free.
04-19-2005, 03:13 PM
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yes. this is exactly what i did, i bought a set off some guy on this forum for $100..and it works great! no rasp at all and there some gains. i too have the faint carbon monoxide smell w/ the windows down.
04-19-2005, 04:17 PM
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Originally Posted by 1nate7
First of all, I wouldn't recommend doing this to your only set because you will likely run into problems at inspection/emissions or when you sell the car. I now have a 350Z and I still had the stock cats from my G35 that was totaled. After trying to sell them (cheap, $75 shipped BTW) for the last couple weeks I decided to just keep them and gut them out. After having the Borla exhaust + Kinetix resonated test pipes on my G35, the stock exhaust just wasn't very satisfying.
I am very pleased with the way things turned out. No SES light (early 04 model) and the rasp is almost non-existant. It sounds very similar to stock but is noticably louder at all RPM's. I still get a faint gas smell with the windows down at idle, but it doesn't seem to be as bad as my G35 with the Kinetix pipes. I might pick up a Borla exhaust if I can find a cheap used one because I do like the deeper tone, but right now this will keep me happy and best of all it was free.
I am very pleased with the way things turned out. No SES light (early 04 model) and the rasp is almost non-existant. It sounds very similar to stock but is noticably louder at all RPM's. I still get a faint gas smell with the windows down at idle, but it doesn't seem to be as bad as my G35 with the Kinetix pipes. I might pick up a Borla exhaust if I can find a cheap used one because I do like the deeper tone, but right now this will keep me happy and best of all it was free.
Last edited by thawk408; 04-19-2005 at 04:25 PM.
04-19-2005, 05:32 PM
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Originally Posted by dchi_t
no rasp at all and there some gains.
04-20-2005, 12:49 PM
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Originally Posted by Eldy
CO is odorless.
anyway back on topic... for those with gutted cats, have you dyno'd? Just curious. I'm wondering if gutted cats performs as well as test pipes (and leans out the mid-range just like TPs)
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04-20-2005, 01:08 PM
#8
Originally Posted by Eldy
CO is odorless.
It can't be good for your brain... especially come winter time
I think I lost a few cells in my old 86zx, it had a manifold leak somewhere... I hope my HELIX HF's don't emit anything!!!!!!!!!! Another reason I stayed away from the TP.
04-21-2005, 07:10 AM
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Damn i need to find me some stock cats and gut them, should be much better than my test pipes. BTW how much of a gain did you feel in HP compared to non-gutted cats
04-21-2005, 08:12 AM
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Originally Posted by Zquicksilver
It can't be good for your brain... especially come winter time I think I lost a few cells in my old 86zx, it had a manifold leak somewhere... I hope my HELIX HF's don't emit anything!!!!!!!!!! Another reason I stayed away from the TP.
I think I lost a few cells in my old 86zx, it had a manifold leak somewhere... I hope my HELIX HF's don't emit anything!!!!!!!!!! Another reason I stayed away from the TP.
04-21-2005, 05:03 PM
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Originally Posted by 1nate7
I am very pleased with the way things turned out. No SES light (early 04 model) and the rasp is almost non-existant. It sounds very similar to stock but is noticably louder at all RPM's.
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