Home of 8.1L & 8.8L PSI, for all your 8.1L & 8.8L PSI performance needs.
High performance LSX tuning and repair. 8.1L 8100 496 Vortec and 8.8L PSI specialist. GM engine swap specialist. VATS delete, speedometer recalibration, e fans enabled using HPTuners.
Background
Hello, my name is Ed Coss. I have over thirty years of experience with GM performance vehicles. I hold degrees from Arizona Automotive Institute, Fayetteville Technical Community College, Florence Darlington Technical College, SAMtech, Pima Community College and U A T. With a strong back ground in EFI tuning, Welding, Engineering, CAD/CAM, and additive manufacturing.
