|
well i can tell you that i dont have any pre cats and a 2 into 1 high flow center cat and it resonates like no other at 3000-3800 rpms. I have been told this is b/c of the lack of pre cats by many on here. So i would say if you take em out replace them with something else. Definitely wish i had done that. Never know though with the stebro it could be different
|