I don't know about the 3" setup m4ck. That's the same diameter as the Banks and some of those people complain about low end loss.
If your going to go with a single setup than 2.5" would be plenty and should preserve low end torque. I believe JBA makes a system that is 2.5" and replaces your resonators all the way back...I'll look and see what I can find because you NEED to get that dual in/dual out off ASAP if you want to ever enjoy tire burning low end grunt again!!
If your going to go with a single setup than 2.5" would be plenty and should preserve low end torque. I believe JBA makes a system that is 2.5" and replaces your resonators all the way back...I'll look and see what I can find because you NEED to get that dual in/dual out off ASAP if you want to ever enjoy tire burning low end grunt again!!