GM Overdrive Transmission - Shifty Business

Additional features: Since the PCM is being reflashed, there are many parameters that can be adjusted at the same time. Customers can request specific changes, though Wright can also make recommendations for tuning changes based on the combination of parts and intended use. Typically, the biggest performance gains are seen on trucks, with 454-equipped models seeing as much as 35hp increases in some instances. Fourth-gen Camaros and Firebirds will see about 10-12 hp with stock hardware, while Impalas and Caprices can pick up as much as 12-14 hp. Wright can also reprogram PCMs to accept other changes, like larger airflow meters or throttle bodies, larger injectors, and so on.

Applications: Fastchip can reprogram V-8-equipped Camaros and Firebirds all the way back to the '85 model year; the same goes for Corvettes. Truck applications include most throttle-body-equipped V-8 engines as well as Vortec V-8 engines.

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