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BLM · 03-22-2011, 06:05 AM

Just wanted to bump this thread and let everyone know that ARK is in the process of fabricating their own HFC to fix the whistle/hissing noise that you get from the exhaust when paired with test pipes. Not sure on the ETA but it's in the works.

I'm no engineer but I'm assuming the pipe will have to be somewhat more restrictive to eliminate the hiss since it's present with HFC and TP, but not with stock cats. I could be totally wrong and it may be a design issue. Either way I hope it comes out soon because I love everything about the ARK GRIP other than that hissing noise. If it doesn't come out or doesnt fix the hissing I can always go back to stock cats, but I really dont want to lose the performance from a TP or HFC.

03-22-2011, 06:05 AM	#43 (permalink)
BLM Enthusiast Member Join Date: Feb 2011 Location: NJ Posts: 342 Drives: 2011 Silver M6 sport Rep Power: 14	Just wanted to bump this thread and let everyone know that ARK is in the process of fabricating their own HFC to fix the whistle/hissing noise that you get from the exhaust when paired with test pipes. Not sure on the ETA but it's in the works. I'm no engineer but I'm assuming the pipe will have to be somewhat more restrictive to eliminate the hiss since it's present with HFC and TP, but not with stock cats. I could be totally wrong and it may be a design issue. Either way I hope it comes out soon because I love everything about the ARK GRIP other than that hissing noise. If it doesn't come out or doesnt fix the hissing I can always go back to stock cats, but I really dont want to lose the performance from a TP or HFC. __________________ K&N // GTM // BERK Last edited by BLM; 03-22-2011 at 06:07 AM.