If you want the most out of your tune you will need exhaust to help the car further with "breathing" mods, easier exhaust paths/flows is better. And for people saying you dont get power out of exhaust systems is a load of BS, My Berk test pipes and HKS exhaust gained +22whp over stock.
DAN
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-My BRZ with exhaust will decimate all if we overnight parts from Japan-
10 Civic EX Sedan- Current Daily
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