the 11+ mbrp DP fits I just installed today, the exhaust will if you do the 11+ style BP as its vband and not the 3 bolt style as the new ones. cant comment on the lift pumpI am planning to purchase a new 15.5 denali in a few weeks. I have some left over mods from my 2011 lml and was curious if my banks intake, lift pump, and exhaust would all bolt over to the new one. Planning on PPEI and EGR delete day one. Thanks for the help.