15-21 Subaru WRX Invidia r400 vs muffler deletes +rev clips and review

Comparison between the invidia r400 and muffler deletes, the car has a stock jpipe

[@roninlaw9824]

Rich fuel makes the pop btw. It's not necessary for the car

[@roninlaw9824]

This 8e a good start. If you're poping

[@roninlaw9824]

If you yave an STI you keep it real

[@roninlaw9824]

Yeah it's pretty much exploring where thise limits are. ECU tuning

[@miosttk6357]

how do u make your sti pop