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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
Firmer shifts
We have upgraded pulleys available from some of the best and proven brands on the market
Flash tune within the comfort of your own garage via the OBDII diagnostic port of your vehicle using OBD cable or My Genius handheld programmer
Replace your idlers with UPD`s performance idler set today
E55, CLS55, SL55, S55, AMG M113k Belt Wrap Kit Cooling Firmer shiftsUPD 55K Belt Wrap Kit Designed to stop the slipping of the belt under boost pressure and braces the double idler kit for added strength. Ultimate Performance supercharger belt wrap kit. Designed to stop the slipping of the belt under boost pressure to maintain maximum boost under full throttle and brace the weak factory double idlers, that are known to fail. Specs: Prevents loss of boost under full throttle , thus increasing power equally across the
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