2001-2007 Chevrolet Express 4.8L, 5.3L, 6.0L and 8.1L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):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

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CAMSHAFTS: For 2014+

Considerable Shift and Torque Converter Improvements*

Black Bear Performance offers three different levels of custom tuning service for your 2002-2007 Hummer H2 6

2001-2007 Chevrolet Express 4.8L, 5.3L, 6.0L and 8.1L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):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 2001 2007 Chevrolet Express 4. 8L, 5. 3L, 6. 0L, and 8. 1L. We commonly see gains of 15 30hp, 15 20ft lbs of torque gains out of the 4. 8L 5. 3L variations and 6. 0L 8. 1L engines can see a monster 30 35hp+, 40+ ft lbs of torque, depending on fuel quality, octane and vehicle condition prior to the tune. Due to frequent issues with 6. 0L and 8. 1L vehicle sensors, we