GM E90/T93 Upgrade Kit Year_1976 Muffler contains an Internal H-Pipe

Muffler contains an Internal H-Pipe for increased performance and improved sound

450lph or 255lph E85-compatible fuel pumps

you must follow these installation steps once receiving your new ECM

built and assembled in the USA

reduced drivetrain flex

GM E90/T93 Upgrade Kit Year_1976 Muffler contains an Internal H-PipeTake full control of your trucks performance with the GM E90 T93 Upgrade Kit! Designed for 2019 2022 GM vehicles equipped with the E90 ECM (engine control module) and T93 TCM (transmission control module), this kit enables full tuning capabilitywithout ever removing your controllers from the vehicle. Perform the upgrade quickly and easily from your own garage or shop. See full vehicle compatibility list below. Upgrade Your E90 ECM and T93 TCM Right in