Max Air Flow Bundle Kit For 2020-2025 Silverado/Sierra 2500/3500 HD L5P Duramax Illusion Purple HSP Diesel FLEECE PERFORMANCE " This coolant pipe is custom

This coolant pipe is custom fabricated with a heavy-duty flange

This treatment also provides the additional benefit of UV protection

Hays heavy-duty flexplates for high performance and competition engines are constructed of a thicker than stock steel plate

It includes (14) heavy-duty 10mm bolts to secure the girdle to the block

Max Air Flow Bundle Kit For 2020-2025 Silverado/Sierra 2500/3500 HD L5P Duramax Illusion Purple HSP Diesel FLEECE PERFORMANCE " This coolant pipe is customThe 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