Stealth Module - Chevy/GMC Duramax L5P 6.6L - 2500/3500 (2024-2025)

2024 Sierra 2500 Black Widow

Module did exactly as expected! Much better take off and power on the lower end. Install took about 5 minutes and very straight forward. Great videos for reference. Very happy with the purchase!

2024 gmc Denali

I’m shocked at how easy it was to install just a plug-in-play. I installed it then took camper on a road trip out of state. Had it on med. With my 32 foot camper going up hills passing slower rigs, had enough power with no hesitation with the turbo lagging. It woke up the truck for sure.

2024 Chevrolet Silverado LTZ 2500HD

I have noticed a definite improvement in my performance. Marked difference in the turbo lag. I'm looking forward to what improvements I get when towing.