Video: Hex Tuning M4 ECU Tune & Dyno | Graham's M4

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Graham drives his M4 hard! After all, when you're a professional go-kart racer and aspiring IMSA Pilot you need to feed the need for speed with your own car. The balance of substantial power gains and reliable delivery of that power made all the difference for Graham from his previous setup. Upgraded SSP Spec-R DCT Clutch packs were installed and with the rest of the car ready for more power, StudioRSR chose to flash his M4 with VF-Engineering's Hex Tuning Stage 2 ECU tune. Graham's M4 did 475whp and 590wtq SAE with 91 octane.

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