2.4 Bottom end hybrid- Automatic Transmission, Tuned 2003-2005 Cavalier/Sunfire Ecotec ECU/ECM

A custom dyno-tuned ECU/ECM for 2003-2005 Cavalier/Sunfire running a 2.4L Ecotec bottom end hybrid with an automatic transmission. SBR Performance supplies and tunes the ECU — you get a plug-and-play unit built specifically around your engine combination and power goals. Fitment 2003-2005 Chevrolet Cavalier / Pontiac Sunfire with 2.4L Ecotec bottom end hybrid, automatic transmission About the Tune Every tune is developed through extensive dyno research on this exact engine combination. Luke dials in fueling, timing, and transmission shift points to extract maximum performance from the 2.4L hybrid platform while keeping it streetable and reliable. This isn't a generic off-the-shelf flash — it's a purpose-built calibration for your specific setup. What's Included SBR Performance-supplied ECU/ECM, custom tuned for your 2.4L hybrid automatic combination. Plug-and-play installation — no additional programming equipment needed. Before You Order Please list any engine modifications in the order comments at checkout — camshaft, head work, intake, injectors, forced induction, etc. The more detail you provide, the better we can tailor the tune to your build. All orders are handled confidentially. Not sure if this is the right tune for your build? Contact us and we'll help you figure out exactly what you need.