3" is too big for such a small engine..
i wouldnt go any bigger than a 2.5" exhaust. even with the motor we're currently building, its exhaust size isnt going anywhere beyond 2.75" which i reckon is too big anyway, there'd be more torque gain with a slightly smaller exhaust


Reply With Quote

B16a2 with, Modded factory airbox+ *DH-Racing.com TB+IM Combo*+H+E quick tuned power fc.


Bookmarks