Sounds more believable than most previous modules we tested Results can take up to 2 weeks of normal driving to fully complete. This process involves gathering data from your onboard computer and transmitting overrides to your ECU for performance and fuel economy improvements. Step 4: Once your vehicle is started for the first time, the JDM PROm Performance Chip Module begins a learning process. After 10 seconds, you can start the vehicle normally. The JDM PROm Performance Chip Module needs about 5-10 seconds in this stage to transmit data from your vehicle’s ECU. Step 3: Insert vehicle key and turn the vehicle switch one position (or press your start button) without starting the vehicle. Step 2: Insert stage 1 into your vehicle’s port while the vehicle is in off position. Installation steps were fairly straightforward: The JDM ProM chip comes in two versions, the blue version, and the white version with a flexible OBD cable for fitment to the OBD port. Product Appearance JDM-ProM-Performance-Chip-Module-Appearance Hopefully, it warrants better performance than most of the previous chips. This price is a bit higher than any chip we have reviewed so far. The cost on the website at the time of this review was $289.99 USD for the JDM PROm Performance Chip Module, and $199.95 on eBay, which claims to provide enhanced pickup, power, and engine performance enhancements. This intelligent feature gives the unit the ability to work in sync with your engine, providing economy or power depending on your driving requirements.” Cost The “maps” are all dynamometer tested and proven to give a very noticeable increase in performance.

Our microprocessor controlled tuning Chips contain engine-specific dynamic “maps” that are placed in the unit’s memory. These mapping specifications will optimize performance increase fuel economy and deliver maximum horsepower otherwise restricted by factory settings. “JDM PRO Chips remap the timing of the ignition to give you greater throttle response. The case and design are unique, so it will be interesting to see what this chip actually does.

The JDM PROm Performance Chip Module offers this and several other versions of their OBD and other performance products. The manufacturer is a company called JDM Performance. They are based in the USA and have been in the tuning market for several years, giving them more weight than previously reviewed products.

Thorton chip tuning stage 3