A TSX member, Awoc, cut a 2006 TSX stock RBB intake manifold in half, fully ported & polished it but the gains were minimal.... i myself was just thinking on port and polishing the stock one. i hear that is good adds just enoff power as you buying an aftermarket one. but im still at a debate myself.
Why bother other than curiosity? Rather extrude hone a RRC, no?I would like someone to extrude hone the stock intake manifold. I actually had plans to this but shipping back & forth from Canada really adds to the already expensive price.
The theory would be there would be no low end losses since it's still a long runner intake but there would be gains at the top end.
Yeah since the RRC adds HP and tq and isn't very expensive and bolts right in, why bother w a possible bad port job that wastes time and