The Daytona Twin Tec M8FI Gen 8 Fuel Tuner is the ultimate tuner for your Touring Harley. Piggy back tuners may be "good enough" for a mild or stock engine, but they simply can't keep up with motors producing north of 100hp. That's where the M8FI ECM comes in! The M8FI ECM utilizes Bosch wideband O2 sensors to keep your bike in an optimum state of tune!
The M8FI solves tuning problems with highly modified engines. Competitive “band-aid” products that interface to the Delphi controller still rely on speed-density fuel control. Long duration/high overlap camshafts wreak havoc with manifold pressure - especially at idle and cruise RPM. Speed-density based fuel control simply can’t cope.
Note: All naturally aspirated motors should use the "Standard" module, 2.5 and 3.0 BAR options are for motors with forced induction only.
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