This top quality Cardone Engine Control Module generally fits Chevrolet - GMC - Pontiac vehicles and includes models such as C3500 - Camaro - Express2500 - Express3500 - S10 - Silverado2500 - Silverado2500HD - Silverado3500 - C4500Kodiak - C5500Kodiak - C6500Kodiak - C7500Kodiak - Savana2500 - Savana3500 - Sonoma - Sierra2500 - Sierra2500HD - Sierra3500 - C4500Topkick - C5500Topkick - C6500Topkick - C7500Topkick - Firebird with trims including . Engine types may include 8.1 V8 GAS FI - 5.7 V8 GAS CARB - 5.7 V8 GAS FI - 5.0 V8 GAS CARB - 4.3 V6 GAS FI - 5.3 V8 GAS FI - 6.0 V8 GAS FI. This part fits vehicles made in the following years 2003 2002 2001.