Gates OEM Timing Belt Auto Tensioner Mitsubishi EVO 8 + 9 | T43130 STI_2015-2021 This permits the roll stiffness

This permits the roll stiffness to be tuned for different situations without replacing the entire bar

(Includes: Mounting Hardware

road and rally racing

It will however net you some serious gains through out the power band and improve throttle response

good heat tolerance

Gates OEM Timing Belt Auto Tensioner Mitsubishi EVO 8 + 9 | T43130 STI_2015-2021 This permits the roll stiffnessFitment: Mitsubishi EVO 8 + 9 The timing belt auto tensioner actuates a spring loaded lever to adjust the auto tensioner pulley (sold above) to automatically adjust for belt slack as the timing belt wears over time. Replacement of this component is required whenever the timing belt is removed from your 4G63.