Command Performance Engineering

Over the years, CPE has worked on numerous Jeep projects that were Fuel Injected and equipped with Small Block Chevy or Big Block Chevy powertrains. While these projects finished with great success, we have heard the requests from a great number of shops and individuals working on Jeeps AMC or Dodge powertrains as equipped in their vehicles.

We currently provide PCM/ECM programming support for a multitude of engine/transmission swap scenarios in the 2005 & up Jeeps.

We are committed to provide the needed and long overdue support for the earlier generations of EFI equipped Jeeps, specifically for the following years and PCM/ECM Type:

1987 - 1990 RENIX
1987 - 1990 SBEC - Super-D
1991 - 1995 SBEC
1996 - 1998 JTEC
1999 - 2004 JTEC+

In the weeks and months ahead we will be working on developing user friendly software for tuning these EFI controller systems for the benefit of all enthusiasts who wish/need to alter their EFI system for improved performance and/or economy, while coordinating those efforts with virtually any engine modification you can dream up (Upgrades, i.e.: Cam, Cylinder head work, Intake, Exhaust, Injector size, Bore, Stroke, Compression Ratio, etc.).

CPE developed the strategy to enhance the 4L65E transmission which was shifting poorly

All driveability and power tuning was performed by CPE. Owner stated that the car now performs better than ever!

CPE reprogrammed the factory ECM to handle this beautiful 675 HP Big Block setup in a show truck

CPE resolved all driveability issues, improved power & MPG. Car was running too rich and previously failed emissions test, now passes cleanly.