ATI 15% Underdrive vibration damper for Chrysler 300C, Dodge Challenger, Charger, Durango and Jeep Grand Cherokee 5.7 and 6.4 from 2011 to 2023

If you want to free up some extra power by reducing the speed of your accessory components, the ATI 15 % Underdrive Super Damper is just the thing for you.
This vibration damper has a 7-inch swing weight for maximum protection of the crankshaft and valve train!

The ATI 15 % Underdrive Super Damper is not only a performance upgrade, but also an important component for the engine safety of your 5.7 or 6.4 Hemi.

The ATI Super Damper is SFI-approved for road and racing applications. The ATI Super Damper was specially developed for high-performance applications and ensures balanced damping of torsional vibrations of the crankshaft at all engine speeds. With 360-degree laser engraving for marking the ignition timing.

The patented ATI Super Damper is the only damper developed exclusively for high-performance engines.

• Eliminates torsional vibrations of the crankshaft, protects bearings and timing drive
• SFI-18.1 certified: Suitable for racing, safe at high speeds
• Relieves the load on auxiliary units, delivers noticeable extra power (up to 10-15 hp)
• Better response behavior: Noticeably faster revving, more agile driving feel
• Durable & easy to service: Rebuildable design with replaceable O-rings
• Engine protection upgrade: Prevents the known weaknesses of the standard Hemi damper
• Laser-engraved 360-degree markings
• Black chrome-plated zinc coating

Delivery includes:

• ATI 15% Underdrive Damper

Notes:

• This part is intended for professional installation only
• Requires minor grinding of the oil pan/control housing ears to create space
• A minimum distance of 0.060 between the rear plate of the damper and the control housing/oil pan is recommended
• Installation instructions are supplied in English.
• A shorter belt may be required, this is not included in the scope of delivery
• Not suitable for 2009 and 2010 5.7

About the manufacturer ATI Performance Products:

ATI Performance Products, Inc. was founded in 1961 in Baltimore (Maryland, USA) and is today one of the leading specialists for high-performance components in motorsport.
The company has been known for decades for its innovative technology, uncompromising quality and racing experience.

The product portfolio ranges from gearboxes, converters and differential components to the internationally renowned ATI Super Dampers. These are regarded as the industry standard for professional racing teams and demanding tuners worldwide. They have multiple SFI 18.1 certifications, a modular design and can be resealed or repaired as required.
Thanks to their outstanding quality, they are not only regarded as the tuning standard, but are also used in various Mopar Crate Engines ex works.

The company stands for precision "Made in the USA", combined with decades of experience in professional motorsport. Anyone who opts for these products receives a component that combines maximum safety, a long service life and maximum performance - both in everyday use and under the toughest racing conditions.