Originally Posted by Bad@ssCamaro
I might be wrong here, but with the mods listed there, I don't thing you're going to get another 200 horsepower from those.
I think base rwhp on SS is 370.
If a tvs2300 gives right at 500RWHP(and it does). Then all I need is another 50RWHP. Headers; add a better intake or filter than comes with the SLP kit; put hi-flow cats into the dual mode exhaust and re-tune. That will get 50 more IMO.
Your correct @ 370RWHP base. I've seen MANY sigs with full bolt-ons and a tune in the mid 500s. Might need a different pulley at best