Isolate harmonics before they can destroy your engine
Isolate harmonics before they can destroy your engine
Protect your engine against harmful harmonics at all RPM levels
Brings harmonic control to the BMW S14 engine
Protect your engine against harmful harmonics at all RPM levels - 10% Underdrive to increase usable horsepower without greatly affecting engine accessories
Free up power that you can feel - decreases drag on the engine by underdriving accesorys by 13%
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This product was last offered at the strikethrough price on
09-28-2026
Isolate harmonics before they can destroy your engine
Protect your engine against harmful harmonics at all RPM levels - 21% Underdrive to greatly increase usable horsepower for racing applications