these rocker arms offersincreased durability in street/race GM LT1 engines. 2019 ford mustang Designed to work with QA1's

Designed to work with QA1's retro fit kit

Every BBK Performance X pipe is designed as a direct replacement for the factory pipe and features larger diameter 16 gauge 2-1/2" CNC mandrel bent aluminized steel tubing with a unique BBK center X section for improved exhaust extraction

auto-x and hot street corner carving

6L Duramax Diesel

An adjustable speed strap has been added allowing the driver to tighten the gloves wrist as desired

these rocker arms offersincreased durability in street/race GM LT1 engines. 2019 ford mustang Designed to work with QA1'shigh needle count full complement roller bearings and hardened steel retaining rings for a complete package. These upgraded rocker arms improve the reliability of your GM Gen V LT rocker arms and are a must whenever installing a high performance cam or higher load valve springs.