GMC Sonoma / S15 Jimmy 4.3L ECU Tune (1998–2000)

Description

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
• Tire/Gear Change Calibration
• Accommodation of Most Modifications (Internal engine modifications, superchargers, turbochargers*, upgraded transmissions, etc).

*Due to variability in turbocharger systems, they must be evaluated by our tuner prior to committing to any services.  Additional tuning service/hardware may be required.

Explore more from our collection.