I am deciding on the bbk longtubes and getting the mac prochamber, how will this fit together?? if it wont how good are the MAC Headers i heard bad things about them but they are probably the only headers that would fit the prochamber.
just buy the mac to fit with prochamber thats what fits for sure mac's are now heli arc welded and ceramic coated best you can get now fits auto & manuel where i work we installed them all, now mac's are really improved
guys in the back that do installs say they are really good. as far as leaks installers commented all brands we have installed have leakers once in a while but now that the mac's are heli arc welded they say thier the best now! buy the ceramic coated