sku: ESS-N13B16A N13 ECU Performance Software ESS N13 ECU software is a result of extensive testing and exact calibration of ECU parameters to allow significant performance gains on a stock car. Part number: ESS-N13B16ATop Speed Governor: RemovedRPM Limit: Raised 300RPMFuel requirement:... MSRP: Now: $995.00 Add to Cart Compare Selected