Allows the exhaust to flow more freely right? What, if any, would you say would be the whp increase on the f22a4 i currently run? Or does it just make the car louder with little to no increase in performance? Also any change to fuel mileage?

 

are you just removing the resonator and leaving the rest of the exhaust stock?

 

The only appreciable difference you'll note is the increased frequency of police following you and (of course) the increased decibel level from your exhaust.
Without additional changes, there will be no increase in performance.

P

 

the car is an f22a4 accord. from what i have read what sets tha a4 apart from the a1 is a larger header design and larger exhaust piping. i already replaced the the muffler with a 3a high flow

 

Exhaust resonator? Would not give an you ounce more power. Leave it on, it will sound less buzzy.