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.
Featuring Advanced Fuel Dynamics x Deatschwerks 600cc Injectors! Max Wheel Horsepower Supported on E85 of 750hp on naturally aspirated engines & 690hp on forced induction engines!
Increase of +69 Horsepower, and +21 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!
This cylinder head bolt service kit is for M156 6.3L "63 AMG" engines with plastic valve covers only. Includes Cylinder Head Gaskets.
10X Entries Into Our F80 M3 Sweepstakes For Cars With Plastic Valve Covers Only
Brand:
ES#:
4812424
Mfg#:
1560160769KT1
Ships in 3 Business Days
$1238.99
This product was last offered at the strikethrough price on 08-31-2026
Features 32 levels of damping adjustment and full length adjustability
For vehicles with Airmatic only. Bypass Module required to turn off dash warning light.
All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.
