could i use that as my resonater or should i get a regular long resonator or both?? thanks for your help

 

You can use just the resonated test pipe, but it will still sounds like a car without a resonator.

Your catalytic convertor acts like a resonator, sound-wise. When you remove it, the car becomes more raspy. That is why they sell resonated test pipes. If you remove the resonator from the exhaust, it will sound like an exhaust without a resonator - raspy. I suggest you keep the resonated test pipe and the resonator.

 

t1r is a resonated test pipe.....best sound out of this test pipe of all on the market!