Eliminate weak factory plastic idlers with the UPD M113K Billet Idler Set - a high-strength CNC aluminum upgrade built for smoother operation, extreme durability, and long-term AMG reliability.
Eliminate weak factory plastic idlers with the UPD M113K Billet Idler Set - a high-strength CNC aluminum upgrade built for smoother operation, extreme durability, and long-term AMG reliability.
Pairs with all types of coolant to increase heat transfer and decrease engine temps.
Designed to handle continuous temperatures up to 1,800°F
100% Bolt-On, 20-50+ HP Gains, and includes with all hardware needed!
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
Get access to even more vehicle data using PROLINK+ to wire in up to 2x analog signals and 1x CAN bus signal. Compatible with MPVI2+ and MPVI3 interfaces.
For use with HP Tuners MPVI2+ and MPVI3 interfaces only.
This product was last offered at the strikethrough price on
05-12-2026
High performance coolant conditioner
Sold in a black powdercoated finish.
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
Eliminate weak factory plastic idlers with the UPD M113K Billet Idler Set - a high-strength CNC aluminum upgrade built for smoother operation, extreme durability, and long-term AMG reliability.
Service kit for FMDv004
Unleash the hidden power in your vehicle to get instant feedback & response!
Designed to handle continuous temperatures up to 1,200°F
Includes all new hardware, pulley is Anodized in Black
Only fits Weistec Supercharger
Includes all new hardware, pulley is Anodized in Black. This pulley is designed for cars without headers, and stock (150mm) crank pulley.
Only fits Weistec Supercharger
This product was last offered at the strikethrough price on
05-02-2026
Secures items under the hood and resists rust