Originally Posted by NeverEnough
It's not really new info. There are a few tuners out there that have Pulleys and ECU Tunes for the SRT-6. Honestly, the realistic improvement at the wheels is closer to 45 HP in most cases if all you're doing is the pulley and ECU.
a forum member srt_6 bumped to 350 to the wheels with the SI tune... and the crossfire starts at around 290... the dynos don't tell the whole story, but in his case i guess the bump was 60 horses with these modifications..