Not bad... but I still have some drivability issues that I am trying to work out. It is FAST (and loud)! Pretty happy with the numbers considering that it about 90 degrees today and plenty humid. We ran the car in 540
range cold but it was running to lean to be reliable.
Previous numbers were 485 / 493 with the intake disconnected (the stock GSM intake was very restrictive).
The revised intake from GSM increased boost from 6.5 lbs to 10.5 lbs at 6000 rpm. The 80# injectors supplied with GSM's revised control module did not work and we settled on 60#.
Modifications to date:
GSM Stage-2 Supercharger
Kooks Headers
Kooks Mid-Pipes (w/o cats)
Magna-Flow 3" Exhaust
GSM ESP module
GSM O2 simulators
I-Forged 22" 3-pc wheels
Mich. PS2's 255/30 & 295/25
KW Level-2 Suspension
Cross-drilled, slotted & nickle-plated rotors with Carbo-Tech Ceramic pads
Custom JL-Audio sound system (800-watts & Dual 12's)
UNGO remote start & active alarm with pager
EZ-Stainless mesh grill