STAR Diagnostics & Troubleshooting M156

STAR Diagnostics & Troubleshooting M156Whether your car won't start at all or if have a check engine light that just won't go away, AMG Doctor can pin point the cause of your problem using STAR Diagnostics. As an added bonus we can credit the cost of diagnostics and troubleshooting towards the total of your repair bill, when you decide to have our team repair your vehicle making it completely free.

Made in USA and highest quality available

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

the pulley will spin the supercharger faster at a higher RPM

We have upgraded pulleys available from some of the best and proven brands on the market

M156 RaceIQ ECU Tune

The UPD high performance M156 5 piece idler set will completely replace your stock plastic idler pulleys with a high quality CNC billet aluminum machined performance pulley set

Quicker up and downshifts

Gains +40hp & +30ft/lbs tq on stock engine

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

Compatible with most all cars with the M177 engine: C63

SL55 AMG Mercedes Performance 5 Piece Idler Kit

*Fits M113k engines only*Professional installation required