GReddy Supreme SP Cat-Back Exhaust System (2015+ WRX/STI)
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Combines larger piping diameter and smooth bends to limit turbulence under acceleration
3" piping diameter that routes to a 'Y' section for improved exhaust flow
3.5" oval tips
Fully hand-welded 304 stainless steel materials
Resonators installed in the center pipe and rear side pipes
New gaskets included
Reduces turbo lag
Improves throttle response
Improves horsepower
Improves torque
Aggressive sound
