Redlinez

iTrader: (5)

You definitely will need a ls1edit style tune, and you may need a driver 02 sensor. Mine is like 30hp down when the driver 02 goes out (read rich). Mine dyno'd exactly 383rwhp with my new ls6 intake, which is exactly what it made without it, found it was running one solid point rich. Got it tuned and it picked up to 391.7 and I ran .27 and 1mph faster. Granted, I can't tell you it was all the intake. I also did the upgrade injectors.