Header-Catback Dynos

[AFix03]

Hey everyone i was wondering what kinda dynos you have seen with only a header to catback system. I currently have a magnaflow catback exhaust system and sitting in my garage is my brand new Jet Hot Long Tube headers with an ORY. I want to know what kinda rwhp everyone has seen

thanx
fix

[rotwiler]

02 Z28, A4
K&N Fipk and Magnaflow exhaust, plus out of the box Predator tune 307.1 rwhp SAE
With the Addition of LT FLP headers with cats, rear 02 sims, 345 rwhp SAE(I don't have my dyno sheet here, but is within a h.p or two) I had to bring up the A/F to 12:9:1 to acheive this, before using the Predator to change the A/F I was at 318 rwhp.

[02 Blk T/A WS6]

02 trans am ws6
mods=lid,dynatech supermaxx longtubes with cats into a spintech 3in catback
on 4 pulls the best i got was 354.1hp and 358.7torque

i did tune the car later on so its prolly in the 360's now