What HP and TQ do you expect from these mods?

[robz]

Added to an 03 Zo6 what RW HP and Torque would you expect after TUNING?

TPIS longtube headers
vararam
s2 TB w/coolant bypass
3.9 gears
high T Thermostat

What should be the next mod to get closer to 400 HP?
Thanks.

[colorado z06]

My TPIS long tubes and x-pipe will be in on the 14th. I'm installing 83mm TB and the LS1 edit. Already have the VaraRam.Removing the cats. We are expecting around 52hp to rw.

[Backlash]

Rob,

I would go to a dyno and get a baseline measurement and an idea of how rich I running - this would give you some idea of how much a tune would give you. Probably the next step would be to finish out the exhaust system from the headers back.