Punisher Performance


Planning on doing some upgrades to your truck in the near future? Not a problem, anytime you add performance parts that require a re-tune, Punisher Performance will be glad to take care of it for you. The Reaper can optimize any combination of performance part; you’re never stuck with a pre-canned set of tunes. The Reaper allows you to log-real time data so that we can view the information and write new tunes for remote users, and all information is exchanged via email!

Reaper programmers are currently available for 2001-2015 year model Duramax trucks and vans. Reapers programmers for the Duramax come standard with 5 tunes, and a DSP5 switch for your choice of LB7, LLY, LBZ, or LMM.

Reaper programmers are also currently available for 06-09 year model Cummins trucks. Cummins Reaper programmers are standard with 5 tunes and a CSP5 switch for the 5.9 Cummins models. The 6.7 Cummins versions come standard with 5 individual tunes, and can be upgraded to CSP5 switchable tuning when the update becomes available from EFILive.