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] Black Bear Performance offers three

Black Bear Performance offers three different levels of custom tuning for your 1999-2000 GMC Yukon 5

This gauge-type controller features a digital LED display and sweeping LED “needle” that changes colors as AFR changes from rich to lean

CAMSHAFTS: If you have or plan on an aftermarket cam swap

Black Bear Performance offers our AutoCal custom tuning service for your 2015-2020 GMC Yukon 5

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] Black Bear Performance offers threeBlack 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