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and Knock Sensor Harness
**Vehicles (VF2) with the "sound enhancer" fitted will need the sound enhancer deleted totally
After upgrading
Yum Detailer and Yum Citrus
The Tuning School, GM Advanced Topics using HP Tuners Printed Course KIA Twin turbo and Knock Sensor HarnessOVERVIEW *GM LS or LT course is a prerequisite* Tune with confidence! This course will teach you advanced tuning knowledge in a topical format for GM vehicles. COURSE CONTENTS Topics Include: Adaptive Idle Tuning (Proportional, Integral throttle controls) Idle and Part Throttle Power Tuning (Economy and power) Scaling the Tune (MAF range extension) Scaling the Tune (Larger injectors than allowed) 2 and 3 bar Speed Density Tuning GEN III 2 and 3 bar