Teddy Shelba

2024 Duramax Tuning In. This is your warranty friendly alternative to a flash tuner. Choose your preferred power level and enjoy your ride all while controlling temperatures and.

For a 2024 look to wait a few years. The truck’s l5p duramax diesel engine received a substantial bump in power and torque thanks to a stout list of upgrades, including a new turbocharger, improved piston design,.