2024 Duramax Tuner Performance. With the 2024 duramax, the excitement and potential for upgrades are higher than. If you wanted to tune your truck right off the batt you would’ve needed to buy a 22 or older 21’ lm2 s&b intake, ppe hot/cold charge pipe,.

Even though there are some differences in. The 2020 duramax l5p is rated at 445 horsepower and 910 foot pounds of torque.