No catalyic converter???
04-22-09, 11:22 AM
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No catalyic converter???
Has anyone driven a GS4 without a catalyic converter? If so, how noisy is it? If I put a Blitz exhaust system with pre-silencers on it, would it be even louder? Thoughts and suggestions, please.
04-22-09, 05:52 PM
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I am dumb and basically unbolted the exhaust right in front of the third cat sooo basically running nothing after the headers and it was pretty loud a little raspy not bad full throttle the thing was scary but could tell a big difference at low rpm .......in a bad way 
.... Dunno if that helps
.... Dunno if that helps
Last edited by VIPFAMILY; 04-22-09 at 07:13 PM.
04-22-09, 11:33 PM
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i removed the resonators in my 91LS and welded some magnaflow tips on.. the sound is stock on idle, but when i give it gas it sounds some what like a stock G35.. not a bad sound at all, but it's no where near after market exhaust loud, if you were to add some a/m exhausts on top of removing the resonators, i'd say it would be pretty loud
if you removed the cat, you probably won't pass your emission test
if you removed the cat, you probably won't pass your emission test
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