can any one give me any mods that would increase my mid range to high rpm power on my d15 i already have a ported and polished head short ram air intake and 2.5 inch custom exhaust from the cat back to a straight through muffler with 2.5 inch inlet an a 4.5 inch outlet. i am thinking about either buying or making a set of 4-1 headers but in a few months i will have no use for them. cause i am swapping to a LS and going turbo.

 

Just wait till you do the swap, no use spending money on power that you will only use a few months.

 

Uh, cam?

 

delta 272 regrind..........around 125 shipped.......after you send your core in.