ECM Tuning & Programming
GM Computer Reprogramming | ECM Tuning | GM Programming
Custom ECM calibrations for Vortec, LT1/LT4, and LS1/LS6/LSX platforms. Fuel tables, spark tables, shift firmness, VATS removal, and speed density tunes for street, race, and off-road.
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1996–1999 CK Vortec
Vortec ECM Programming
4.3 to 7.4 — 1996–1999 CK Vortec engines
The computer shown covers application years 1996–99 CK Vortec engines, 4.3 to 7.4. The programs available provide smoother shift or harsh depending on the request. Modified fuel, spark tables and timing compensation at all areas of throttle angle.
Most applications tend to run in the full emissions category. We provide a no-emissions speed density calibration for the off-roader.
1994–1996 LT1 / LT4
LT1 & LT4 ECM Programming
Built for street, strip, and off-road
The 1994–1996 LT1/LT4 computer can be catered to the needs of even the most extreme auto racer. Shift firmness can be altered, spark and fuel tables are also tweaked.
VATS can be removed on all applications if requested. We provide a no-emissions Speed Density version for the off-roader.
1999–2002 LS1 · LS6 · LSX
LS1 Computer Program | 411 ECM | LS6 Wiring Swap | LSX Swap Computer
F-Body, CK trucks, and all LS wiring systems
The computer shown covers application years 1999–02 LS1 Car, F-Body (5.7) and CK engines (4.8, 5.3, 6.0) — all LS wiring systems. The programs available provide smoother shift or harsh depending on the request. Modified fuel, spark tables and timing compensation at all areas of throttle angle.
Custom programs are available — inquire within. Most applications tend to run in the non-emissions category.
Gen IV — E40 (2005) · E38 (2007+)
GM ACDelco E40 & E38 ECM
Gen IV V8 torque-based engine control — Chevrolet, GMC & Cadillac platforms
The GM ACDelco E40 and E38 engine control modules (ECMs) represent pivotal generations in General Motors' transition to modern, computer-driven Gen IV V8 engine architectures. Introduced in 2005, the short-lived E40 ECM served as a bridge unit featuring a 24X crankshaft signal input and electronic throttle control.
The 2007-and-later E38 ECM became a widespread industry standard equipped with a faster processor and support for 58X reluctor wheels. Both modules act as torque-based controllers, managing drive-by-wire throttle inputs, air-fuel delivery, and spark timing to ensure precise performance across Chevrolet, GMC, and Cadillac platforms.
Ready to program your ECM?
Tell us your engine, year, and what you need — street tune, race tune, or off-road speed density.
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