Is there a big difference between the standard manifold and a S/S mani performance wise?...
I already have a de-cat and a ashley racing back box...
Does anyone think i will notice a difference in fitting a mani?
I mean like free revving and torque?
I already have a de-cat and a ashley racing back box...
Does anyone think i will notice a difference in fitting a mani?
I mean like free revving and torque?