Hello Mfavor,
I would also suggest You to get 2060 for Your XZ-B Spec III. If in one time You are looking for more punch then You could get the 2002 Manifold (80 mm).
Cheers..
Originally Posted by
Mfavor
So I retract my statement about the 2058 pipe.it does very well.i just found I made a stupid noobie mistake with my linkage causing the brakes to drag.once I fixed that the engine was a whole different animal.so now that I'm seeing the 2058 has gobs of top and bottom end.which is pipe has the most linear powerband.im leaning toward the 2060 since it's what comes with the spec 3 but I've heard nothing but great things about the 2090.i just wish I had a way to try them out first bf dropping big bucks on them.or if anyone has one used they wanna sell let me know.thanks again gents