Description
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Looking for a mild performance boost? How about a Euro spec stock level R tune? This is a mostly stock 608/607 M4.4 tune, from the S70 T5, which yields approximately 12psi of boost and was rated for 236BHP. The the speed limiter and overboost cut-offs have been removed.
This includes a M4.4 ECU, with the appropriate R tune loaded based on transmission type and vehicle year. If your car originally came with M4.3 (1992-1997 850s), then the appropriate modifications to the tune will be made.
This tune is configured for use with the factory blue or white injectors, which flow 345cc at 3 bar fuel pressure. While you can run this tune with the 850’s orange injectors, swapping to blue or white injectors is recommended.
For those without an OBDII port (94 and older 850s), reading of diagnostic trouble codes using the ‘A’ socket on the diagnostic blink box will no longer function. All other diagnostic ports will still work. We offer an OBDII plug kit, which only requires the connection of 3 wires.
