Looking for reviews on test pIpes for my g37s, I have stillen headers going into the stock cats into an hks hi power exhaust. wondering if anyone would have any suggestions for what test pipes or high flow cats to buy

 

Do a search. /thread

 

yes please search. there are hundreds of threads about test pipes.

 

I have a set of dual resonated mxp test pipes for sale check ny fs thread for pics.

 

I have berks HFC paired with the HKS Hi Power sounds great and no smells. Pick up those set off DPE G u won't be dissapointed...