GM, LS TIMING GEAR SR Their increased material strength overcomes

Their increased material strength overcomes valve train harmonics and stress

the vehicle will remain licensed on that interface and can be tuned indefinitely

– No other tuning or calibration tools can be used with the ECM (including dealer reflash tools)

Wagons & Utes

HP Tuners OBD2 5′ Cable Extension

GM, LS TIMING GEAR SR Their increased material strength overcomesChevrolet Performance timing sprockets are designed to deliver strength and accuracy for many miles of dependable service. They're made from high quality materials such as steel or ironand are a vital link for engine timing. The sprockets are available in a variety of configurations for applications from 1992 and up. To suit: LS1 LS6 L76 L77 L98 LS3 LSA