1998-2000 GMC Sonoma / S15 Jimmy 4.3L Custom Tuning Tune Service:Scan Cable [$815] ($400 Refundable Deposit included) 2L engines can see up

2L engines can see up to 30hp on 91+ octane fuel

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

Enhanced Driveability: Expect better throttle response

*Transmission tuning on 2019-2020 8- and 10-Speed Transmissions is available

We tend to see power gains in the 15-20hp range on a 5

1998-2000 GMC Sonoma / S15 Jimmy 4.3L Custom Tuning Tune Service:Scan Cable [$815] ($400 Refundable Deposit included) 2L engines can see upBlack 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