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I would advise keeping the stock cats simply because if you get an aftermarket exhaust you run the risk of having the hissing/whistling noise. I have it and it doesn't
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03-23-2011, 08:14 AM
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#1 (permalink) |
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Enthusiast Member
Join Date: Feb 2011
Location: NJ
Posts: 342
Drives: 2011 Silver M6 sport
Rep Power: 15  |
I would advise keeping the stock cats simply because if you get an aftermarket exhaust you run the risk of having the hissing/whistling noise. I have it and it doesn't bother me that much and the car makes great power. Regarding emissions, idk if a hfc will pass. I just went with a straight test pipe. I'd do a test pipe or leave the cats in. The only way i'll change to an HFC is when ARK releases their HFC to fix the hissing sound from the combo of their exhaust and test pipe.
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03-23-2011, 10:50 AM
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#2 (permalink) | |
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Enthusiast Member
Join Date: Jan 2011
Location: New Jersey
Posts: 270
Drives: 09 370z,Blue, auto
Rep Power: 15 |
Quote:
I'm half deaf so for me a litte extra noise isn't a real issue,but I also don't want to sound like a kid in an old banged Civic running a fartcan exhaust. 
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