with tune, intake, pulley (which one 62mm is the smallest u can get without milling it from steel,, oh the aluminum pulleys have been reported ,,exploding .supercooler,catch can, rear end change to either 327,,346,,390. u can expect 325 to 345 at the rear wheels.,,,ust so u know the stock rear wheel hp is between 275 and 285. call Needswings he has everything u need (WANT lol )