For vehicles that already have stage 1 supercharger, and want to upgrade to stage 2. Requires High-Flow Exhaust System.
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For vehicles that already have stage 1 or 2 supercharger, and want to upgrade to stage 3. 3.0L Twin Screw Compressor Upgrade
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Replacement Belt for Stage 3, M156 Supercharger System, ABC Suspension Equipped Vehicles
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Makes 30+ WHP gains using the ProFlex Commander and E85! For Stock Injectors.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Only For Cars With Stock Injectors
Start Making More Power & Running Cooler With E85, True plug and play flex-fuel no tuning required
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Does not include valve cover gaskets, or spark plug hole seals.
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Brand:
ES#:
4768254
Mfg#:
225416843
In Stock at Vendor
$621.99
This product was last offered at the strikethrough price on 05-07-2026
Eliminate weak factory plastic idlers with the UPD M156 Billet Idler Set - a high-strength CNC aluminum upgrade built for smoother operation, extreme durability, and long-term AMG reliability.
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Auxiliary Water Pump
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Fits cars with Automatic Climate Control and Residual Engine Heat Utilization (MRA).
Don't let a leaking heater core take your Mercedes-Benz off the road
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Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.
Lifetime Replacement
