1) This is Active Autowerkes equal length exhaust, the idea being that the rear bank is 1 foot closer to the merge so it's lengthened to make it equal.
Thoughts?
Relevance to DOHC e30's?
2) I also see that one of the exhausts pictured above has a expansion bellow and the other one doesn't. Are they necessary?
Thoughts?
Relevance to DOHC e30's?
2) I also see that one of the exhausts pictured above has a expansion bellow and the other one doesn't. Are they necessary?
Comment