1996-1997 GMC Sierra 4.3L, 5.0L, 5.7L and 7.4L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):Unblemished PCM (<5% paint missing) [+$125] Submit a security deposit for

Submit a security deposit for the scan cable hardware ($400)

Black Bear Performance offers our traditional custom tuning service for your 1996-1997 Chevrolet Suburban 5

Accommodation of Most Modifications (Internal engine modifications

It requires the TCM to be mailed to us to be unlocked for an additional $175

Black Bear Performance offers three different levels of custom tuning service for your 2001-2007 Chevrolet Express 4

1996-1997 GMC Sierra 4.3L, 5.0L, 5.7L and 7.4L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):Unblemished PCM (<5% paint missing) [+$125] Submit a security deposit forBlack Bear Performance offers our traditional custom tuning service for your 1996 1997 GMC Sierra. 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 mileage in