1998-2000 GMC Sonoma / S15 Jimmy 4.3L Custom Tuning Active Fuel Management Disable

1998-2000 GMC Sonoma / S15 Jimmy 4.3L Custom Tuning Active Fuel Management DisableBlack 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

Manual transmission vehicles will see a big improvement in shift speed and feel

please see our Terms and Conditions

you'll be able to link the new computer(s) to the vehicle and perform a follow-up log file for review

0L (Including Sierra Denali

Black Bear Performance offers three different levels of custom tuning service for your 1998-2000 Classic Chevrolet Silverado

MPVI4 is your all-in-one solution for scanning

Enhanced Driveability: Expect better throttle response

such as the AEM EMS or FIC

**Due to variability in turbocharger systems

Gains vary widely based on engine size but can vary from 10-15hp on a 4

Copying and flashing those files takes just a few minutes

We just require the stock tune file(s) and a data log from the vehicle which we will use to build a custom tune for you