Should I pull the trigger on HPS post MAF tubes too?
Hi Guys,
I currently have BERK cats, Tanabe Y-pipe and K&N Drop ins. Will these be helpful for my current config. Is there any noticeable growl from the engine from these.
I also notice my berk cats are a little raspy (under load) when they are cold is this normal?
Appreciate any help.
Cheers-KS
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