This is very interesting. I thought a Stg 1 Cos gets btwn 250-280hp. I'll be getting a 4x4 IC soon and I was contemplating a Stg 2 upgrade (803s, chip, 3bar, 18-20 psi). After the 4x4 IC i guess i'll get a 3" exhaust system - try to make the most of my Stg 1 setup first.

Might just save up for an another engine before I go for the extra Stg 2 bits, eh? Whatcha guys think?