Max Air Flow Bundle Kit For 2020-2025 Silverado/Sierra 2500/3500 HD L5P Duramax Kingsport Grey HSP Diesel " FLEECE PERFORMANCE spring loaded cylinder and pressure

spring loaded cylinder and pressure regulation provides up to 150 retarding horsepower throughout the engine's RPM range - not just at high rpm like some designs that use holes or additional parts and claim it as a better idea

This harms the overall performance and degrades your transmission

5 M-BRZ BLK LIP -44MM

you'll enjoy smooth throttle response

5/8 Hitch Pin 4 Useable Length & Twist Clip

Max Air Flow Bundle Kit For 2020-2025 Silverado/Sierra 2500/3500 HD L5P Duramax Kingsport Grey HSP Diesel " FLEECE PERFORMANCE spring loaded cylinder and pressureThe HSP Diesel Max Air Flow Bundle Kit for 2020 2025 Chevrolet and GMC L5P Duramax trucks combines HSP's most popular airflow upgrades into one complete performance package. Designed to improve reliability, airflow efficiency, turbo response, and overall engine bay appearance, this bundle is ideal for stock trucks, tuned applications, towing setups, and performance builds alike. By upgrading the factory hot side pipe, cold side intercooler pipe, and