The W211 5.5 Kompressor engine makes great power from the factory. When you bought your AMG, punching the throttle put a big ear-to-ear smile on your face, but as time goes on that feeling fades away as you become used to the power. Bring back that feeling with an Alpha 5.5 Kompressor Tune & Crank Pulley Upgrade! This simple and safe modification will net you another 100HP!!

More Boost the Right Way

Many competitors use a solid pulley to raise boost levels. While this is a cost effective way of doing things it can come at a price to the owner. Non damper pulleys transfer unnecessary vibration through the engines rotating assembly and components. Over time this can cause premature wear, oil pump fatigue or failure as well as potential engine failure. We use a new OEM Mercedes-Benz crank pulley assembly and precisely machine it to accept our 6061-T6 aluminum outer ring. By doing it this way we are able to maintain the factory accessory pulley and harmonic damper.

pully21200
pully31200
pulley71200

Easy To Upgrade Pulley Size Down The Road

Being car guys we know often we crave more power as time goes on. With this pulley upgrade our engineering team made it easy for you to increase power levels in the future by making the pulley a 2 piece design. If you want more power you can easily upgrade from the standard 172mm to the 180mm pulley by changing just the outer ring of the unit, no need to buy a new assembly.

Not Your Typical Generic Tuning Solution

Most tunes available are generic, rebranded, “solutions” that come from one of a few sources. Typically these tunes are developed more by software engineers than seasoned race engine specialists. As an enthusiast why would you settle for the same run of the mill results? Our custom tune is perfected for your 5.5L Kompressor engine by our in house calibration specialists.

Includes

  • Alpha upgraded 172 or 180mm pulley
  • Gates Greenstripe Micro V-belt
  • OEM crank bolt
  • Alpha custom calibrated tune
  • Water pump pulley *comes only with optional 180mm pulley

Ordering and additional Information can be found Here

THE ULTIMATE IN PERFORMANCE

The goal of AMS is to provide the highest quality, best performing products available.
By utilizing research and development and rigorous testing programs AMS will never compromise the quality or performance of our products.

SHOP PARTS

NOT LEGAL FOR USE ON POLLUTION CONTROLLED MOTOR VEHICLES. THIS PRODUCT IS FOR RACING COMPETITION ONLY AND IS NOT LEGAL FOR USE ON HIGHWAY OR STREET VEHICLES, OR OTHER NON-RACING COMPETITION OFF-ROAD VEHICLES.

Learn More

This policy only applies to installers and/or users who are in the United States, customers who reside in other countries should act in accordance with their local laws and regulations.

Some AMS Performance upgrades may solely be used on vehicles in sanctioned competition which may never be used upon a public road or highway, unless permitted by specific regulatory exemptions (such as a CARB E.O.). For state specific details please visit the following website: http://www.semasan.com/emissions

It is the responsibility of the installer and/or user of the product to ensure that it is used in compliance with all applicable laws and regulations. If a product was purchased in error, do not install and/or use it. The purchaser must arrange to return the product(s) for a full refund.

All performance modifications and installations are at the customer’s own risk. AMS Performance holds no responsibility either implied or otherwise for mechanical, electrical or other failure when using any aftermarket performance products.

Check out with afirmFree
    Shipping

On all orders over $199.99 in the lower 48.*Freight items not included*