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Need help with Exhaust Decision!!!

2K views 1 reply 2 participants last post by  M.Kyle 
#1 ·
I am a noob... just picked up my '17 BRZ last monday. I am thinking about picking up a HKS exhaust (Hi Power Spec L Cat Back Exhaust), but after doing a little research it looks like the pipes are 2-2.4 inches. Is this wide enough to support hp gains? Can I continue to use this cat back if I buy a turbo in the future?

-Lee
 
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