1996-1997 Chevrolet Cheyenne 4.3L, 5.0L, 5.7L and 7.4L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):No Deposit - I will mail my PCM in to be tuned Black Bear Performance offers three

Black Bear Performance offers three different levels of custom tuning service for your 1999-2007 Chevrolet Silverado 4

All tuning with our AutoCal is custom designed specifically for your vehicle

1L engines

Upgrade your GM vehicle’s performance and tuning capability with a Black Bear Performance 0411 PCM Swap Tune

1996-1997 Chevrolet Cheyenne 4.3L, 5.0L, 5.7L and 7.4L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):No Deposit - I will mail my PCM in to be tuned Black Bear Performance offers threeBlack Bear Performance offers our traditional custom tuning service for your 1996 1997 Chevrolet Cheyenne. Gains vary widely based on engine size but can vary from 10 15hp on a 4. 3L up to 30 35hp on a 7. 4L. From bone stock to heavily modified, we can help your engine perform as optimally as possible. Other improvements range from improved idle smoothness to better automatic AND manual shift performance, improved throttle response and improved