Fix Excessive Valve Lash and Accelerated Wear to the Valvetrain
Fix Excessive Valve Lash and Accelerated Wear to the Valvetrain
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.
Unleash the hidden power in your vehicle to get instant feedback & response!
Featuring Advanced Fuel Dynamics x Deatschwerks 850cc Injectors! Max Wheel Horsepower Supported on E85 of 895hp on naturally aspirated engines & 815hp on forced induction engines!
All Aluminum Construction & Factory Pressure Tested!
Complete Set of 20 Main Bolts, Must be replaced each time the cylinder head is removed
Don't let faulty injectors hinder performance
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This product was last offered at the strikethrough price on
05-07-2026
Pairs with all types of coolant to increase heat transfer and decrease engine temps.
High performance grease for multiple applications
Sold in a black powdercoated finish.
Includes Lambda cable & 8-foot sensor cable.
Complete Set of 20 Main Bolts, Must be replaced each time the cylinder head is removed
Featuring Advanced Fuel Dynamics x Deatschwerks 1100cc Injectors! Max Wheel Horsepower Supported on E85 of 1075hp on naturally aspirated engines & 975hp on forced induction engines!
The perfect Clutch Kit to re-build or upgrade any 722.9 7 speed transmission available for AMG vehicle platforms
+289 HP & + 187 TQ, For Vehicles With High-Flow Exhaust, Colder Spark Plugs, ROW Airbox Set, and Secondary Air Injection Delete. Makes 740+ Horsepower (WHP), and 630 Torque (ft-lb)!
+186 HP & + 117 TQ on Stock Vehicle Application, Makes 637 Horsepower (WHP), and 560 Torque (ft-lb)!