OBD2 GM Flasher


GM Programming

OBD2 GM Flasher

Cables & Harnesses


PCMPerformance OBD2 GM Flasher

We offer an OBD2 “dealer” reprogramming system which allows you to flash our custom programs into GM ECUs via the OBD2 ALDL port, without having to remove and send in the ECU (or purchase one). We have dealers/resellers of our custom tuning all over the world using this system, including USA, Mexico, Russia, Finland, Australia, China, Middle East and South Africa. If you are interested in this system, read on to find out how it can work for you. We now also offer the flasher as a rental for the “end user” so you can have us tune your vehicle by email and then return the flasher to us.

***** Support has recently been added for E37/E38/E67 ECMs and T42/T43 TCMs. More applications will be added in the future.*****

PLEASE NOTE: This is NOT an editor ("master" in the language of euro chiptuners), it is a flasher only (i.e., "slave").  You cannot make your own changes to the programming.  We modify the program for your requirements and you flash it into the ECM using the cable.  We do not sell ECU remapping software, or any other kind of software.
Use it on any of the supported vehicles below. This cable supports a narrower lineup than the complete list of all the GM controllers that we can tune in-house (enumerated in detail on the GM programming page). However, more applications will be supported by the cable in the future.


  1996 - 1997 All OBD2 LT1/LT4/L99 Cars

  1996 - 2001 Vortec Trucks (4.3/5.0/5.7/7.4L) using OBD2 black box PCM

  1999 - 2007* LSx Gen 3 Trucks (4.3/4.8/5.3/6.0/8.1L)
  (all trucks with big LS1 style P01/P59 PCM)

  1996 - 2002 6.5L Turbo Diesel L56/L65 Trucks (including Hummer H1)

  1997 - 2004 LS1/LS6 Corvette, Camaro, Firebird

  1996 - 2005* V6 Buick/Chevy/Oldsmobile/Pontiac (3.1/3.4/3.5/3.8L)
  (*big P04 PCM only – 04/05 Grand Prix with small P05 PCM not supported)

  2004 LS1 GTO

  2004 - 2005 LS6 Cadillac CTS-V

  2002 - 2005 4.2L LL8 Trailblazer, Envoy, Bravada (P10 PCM)

  1999 - 2004 Holden using LS1 style P01 PCM

  2001 - 2005* LB7 and LLY Duramax 6.6L Turbo Diesel
  (*E54/E60 ECM only, Allison TCM not supported)

  2006 - 2011 Corvette LS2/LS3/LS7 using E38 ECM

  2010+ LS3/L99 Camaro using E38 ECM

  2008-09 L76/LS3 Pontiac G8 using E38 ECM

  2007+ V8 Trucks/SUV (4.8/5.3/6.0/6.2L) using E38 ECM

  2007+ V6 Trucks/SUV (4.3L) using E37 ECM

  2007+ T42 TCM 4-speed automatics

  2007+ T43 TCM 6-speed automatics

  *** Recently added support for many 2007+ applications using E67 ECM, including: 

            2009 Chevy Corvette ZR1

            2007 – 2009 Cadillac DTS, STS and XLR with the 4.4L S.C. and the 4.6L engines

            2007 – 2009 Chevy Impala 5.3L

            2007 Chevy Monte Carlo SS 5.3L

            2007 – 2009 Buick Lucerne 4.6L

            2008 – 2009 Buick Lacrosse 5.3L

            2007 – 2008 Pontiac Grand Prix 5.3L

            2008 – 2009 Cadillac SRX 4.6L

            2008 – 2012 Chevy Colorado 2.9L, 3.7L and 5.3L

            2008 – 2009 Chevy Trailblazer, SS 4.2L, 5.3L and 6.0L

            2008 – 2012 GMC Canyon 2.9L, 3.7L and 5.3L

            2008 – 2009 GMC Envoy 4.2L, 5.3L

            2008 – 2010 Hummer H3, H3T 3.7L and 5.3L

            GMPP E67 Calibrations

Feel free to email programmer@PCMperformance.com if you have any questions.  If you are interested in becoming a dealer of our performance programs, please send us an email inquiry.  Below are some of our current dealer partners websites (we have many more w/o websites).