Mitsubishi 4B11T Super Damper Harmonic Damper ATI 918253
Mitsubishi 4B11T Evo X Super Dampers
ATI's Super Damper for Mitsubishi Evo X 4B11T MIVEC engines
High horsepower street & race versions
Dampens torsional crankshaft vibrations at all RPM levels
Protects against engine harmonics
Street Version: Direct replacement for the stock OEM damper
Street Version: 5.67" Diameter 3% Overdriven belt drive
Laser-etched timing marks
SFI 18.1 Certified for competition use
Specs
Shell Material: Aluminum
Hub Material: Steel 1.0988" Bore
Inertia Weight: 2.24 lbs
Part # 918253
Please note: Most OEM cranks are held to +/- .0002" while most aftermarket cranks are held to +/- .0005." Hub bores are tight to accommodate aftermarket cranks and due to this honing may be required as part of the fitting process.