Dyno Guesses & Bench Racing Forum - 01 ws6

I just bought a 2001 ws6 firebird wit a m6. The car already had a slp lid, long tube headers, some suspension work and the cats was took out. Anybody know about the estimated rwhp I'm looking at. I hasn't got it to the track yet to get some times on it

330-340 ish...

I appreciate that. I'm looking to go wit a 3 inch exhaust system before I start wit the bolt ons.

TD s? Or a cat back ??