1998-2000 GMC Sonoma / S15 Jimmy 4.3L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):No Deposit - I will mail my PCM in to be tuned *Transmission tuning on 2017-2019 8-

*Transmission tuning on 2017-2019 8- and 10-Speed Transmissions is available

Please Note:

Horsepower and torque gains along with improvements ranging from improved idle smoothness to better shift performance

diagnosing

0L (Denali) and 8

1998-2000 GMC Sonoma / S15 Jimmy 4.3L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):No Deposit - I will mail my PCM in to be tuned *Transmission tuning on 2017-2019 8-Black Bear Performance offers three different levels of custom tuning service for your 1998 2000 GMC Sonoma or S15 Blazer 4. 3L. 10 15hp, 15 20ft lbs of torque gains are common out of this 4. 3L powerhouse. Combine that with improved shift patterns, response and even fuel economy in many cases and you'll have what feels like a whole new vehicle! Additional service offerings include: Speed and Rev Limiter Increase Torque Management Modification Removal