M156 Billet Ider Pulley Kits in Stock
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Rob








That answered my biggest question now, I know you guys also make the underdrive pulley how does that fit in with these. In terms of harmonics, engine operating condition and any gains to be gained if all pulleys were from UPD?
That answered my biggest question now, I know you guys also make the underdrive pulley how does that fit in with these. In terms of harmonics, engine operating condition and any gains to be gained if all pulleys were from UPD?
We have offered the M156 under drive crank pulley for a about 4 years now. To be honest a majority of my sales for the under drive crank pulley kit have been through dealers. We have not had any issues / complaints about them. No premature rod bearing failures due to different harmonics.



We have offered the M156 under drive crank pulley for a about 4 years now. To be honest a majority of my sales for the under drive crank pulley kit have been through dealers. We have not had any issues / complaints about them. No premature rod bearing failures due to different harmonics.






