2001-2004 Chevrolet S10 / Blazer 4.3L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):I will mail my PCM in to be tuned Efan enable

Efan enable

This service disables the Passlock System (otherwise known as Vehicle Anti-Theft System (VATS) or Theft Deterrent) within the PCM on most 1998-2013 GM Trucks and SUVs

Programming of a wide range of 1998-2018 GM vehicles (Full Vehicle List) - 2014+ models with an aftermarket cam

if you have or plan on an aftermarket cam swap

From bone stock to heavily modified

2001-2004 Chevrolet S10 / Blazer 4.3L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):I will mail my PCM in to be tuned Efan enableBlack Bear Performance offers our traditional custom tuning service for your 2001 2004 Chevrolet S10 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 Efan enable Torque Management Modification Removal