Duramax Lifetime Supporter
Join Date: Feb 2012
Well, i don't know which is actually better, but I can tell you that I installed a Banks air filter system, AFE Bladerunner Intake manifold and AFE Downpipe and you could fill a big difference. Quicker spooling and more power.
2008 LMM 1 ton drw crew 4x4. Iron Bull front bumper w/12,000 mile marker wench, PIAA lights, mag hy-tech trans and rear deff pans, 285s w/ rear spacers, fass fuel pump, XX performance duel filters, Banks air intake, AFE bladerunner intake manifold and turbo downpipe, PCV re-route, Supersteer tierods, leveling kit, 58gal transflow replacement tank, firestone air bags.