Will I need my resonated front pipe?
 

I have an invidia catless front pipe, ft86 v1 catback and I had a vibrant ultra quiet resonator installed in the catback. It cut the rasp and volume tremendously. Its pretty much perfect for volume and tone.

I'm wondering, if I get a header and overpipe will that bring put a bunch more rasp? I ask because I got a hks dual resonated front pipe and I'm wondering if I need it. Can this one resonator keep the drone and rasp down even with a header?

Header makes the most difference in exhaust vol. after the stock muffler. It will most likely be too loud.

I put the dual resonator on my car and it really helped quiet the rasp sound. I love it.