X pipe and LT Rwhp?

[scupking]

So right now with stock headers, very dirty air filter (cleaning that this weekend) and a catted H I'm putting down 280rwhp and 300Ft-lbs tq. How much more rwhp should I expect to see with LTs, VRS X pipe and a clean filter? I'm thinking around 30rwhp with my setup for a grand total of 310rwhp (370+crank hp) and 330 Ft-Lbs.

 

[98COBRA281]

probably in the 20-25 range, i think 330 tq is a little high, tq is alot harder to gain then HP. when i did my motor build, i gained 85rwhp, but only 40ft lbs of tq...........