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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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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
The short answer is no, it won't be large enough for a turbocharged build.
I personally wouldn't run anything smaller than 2.5" if you plan to be over 250whp.
 
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