Regardless of your vehicle, the available tuning adjustments will be limited by the factory ECU. While reflashing may be able to improve engine performance, it is usually limited to relatively minor adjustments within the operating parameters of the original engine. This is why ECUs are often among the first OEM components to be replaced in high-performance applications, this is especially true in racing. A standalone ECU will allow you to take control of your engine and customize your tune to meet the demands of your style of racing. While added engine control capabilities and increased performance are the biggest selling points of standalone ECUs for racing enthusiasts, don’t overlook their ability to protect expensive, high-performance engines. When paired with the correct sensors and software parameters an aftermarket ECU can detect and respond to potentially dangerous and/or damaging conditions faster than even the best driver. Once you’ve made the decision to trade out your factory ECU for a standalone unit, you will need to decide what options and features you need from your engine control unit.