I think Aggie with the Dinan long tube, with all of his mods and the Shark tune got 6HP. This is basicly the same thing. Thats around $50 per HP. I would go for some bimmerbrake headers which net 10-15HP at $250. Thats $10-$16 per HP.
Long story intakes are a waste of money IMO spend it else where or keep it in the bank.
Last edited by zander271; 10-05-2012 at 04:23 PM.