10% When You Buy this Power Package!
Duramax power package is a proven combination that will not
disappoint. It was engineered to provide great drivability
combined with safe top end power. As a result you will see
lower EGT's , increased fuel economy, and stock like
(or better) spooling.
drive, and dyno this package almost every day at Fleece Performance
and we’re confident you’ll like it just as much
as we do.
Power Package Includes:
Live AutoCal loaded with proven Fleece Performance tuning
on-the-fly 5 position tune
Side Dipstick Tube
Pressure Relief Valve Shim Kit
Increased power may require transmission upgrades. Give us
a call at 866-737-4966 for free
advice to discuss upgrading your transmission or clutch.