I was thinking to Delete my Midpipe Resonator. I have Downpipe and Cat delete pipe (Test Pipe ) and this HKS Hi power 409 exhaust. Still Its not even close to a loud one. If I delete the Little Muffler type Resonator and add a test pipe will it cause any problem? I want my car to be louder. If the resonator is deleted then the car will have 100% Straight Pipe till Muffler ! Please Advice on this Issue

 

Why do you want it to be louder? If it's just because you want it loud, get a Honda.. But if you want a small performance gain putting a test pipe in (and getting it re-tuned) should make it a little louder.

 

The HKS necks down to 2.5" in that resonator as well. Might be better to just get it cut out regardless of sound.

 

I have mine cut out from the previous owner, Its loud to loud for me, and the interior Drone is TERRIBLE! If you value talking to someone in your car, or listening to music dont do it.

If anything im guessing the pipe is on there to cure the Interior Drone, cause its just horrible.