| Features: LB7 and LLY Tuners in a single unit with 1 price! Base Tuners offer an industry leading 6 performance tunes up to 135hp! Race version tuner for LB7 has an amazing 10 performance tunes up to 215hp! Read and Erase Diagnostic Codes Correct Speedometer for different tire sizes* Removes Top Speed Limiter* Raises the rev limiter up to 4400rpms! Allows for Transmission Retraining Fastest loading tuner on the market Simple in cab installation Increases fuel economy | 
