3" Cat-Back Exhaust for 15-19 WRX STI with Muffler and Resonator

03/16/2020
10 min read

3" Cat-Back Exhaust for 15-19 WRX STI with Muffler and Resonator

03/16/2020
10 min read

This 3 inch stainless cat-back exhaust system for Subaru WRX STI maximizes exhaust flow and horsepower while maintaining a comfortable sound level and helping low EGTs. 

author

Staff Writer
Staff Writer
907 Posts