ATI Performance Products ATI918171 Super Damper Harmonic Balancer

The ATI Performance Products ATI918171 Super Damper is a precision-engineered torsional damper (harmonic balancer) designed to reduce crankshaft torsional vibration in high-performance and racing engines. ATI Super Dampers are the industry standard in professional motorsports, trusted by drag racers, road racers, and serious performance enthusiasts worldwide.

Unlike stock rubber-bonded balancers that degrade over time and fail under high-RPM stress, ATI Super Dampers use an elastomer ring precisely tuned to the specific engine application. This design absorbs and dissipates harmful crankshaft harmonics that can lead to crankshaft fatigue, bearing damage, and catastrophic engine failure.

Key Features:

• Precision-machined billet aluminum and steel construction for superior strength and durability
• Elastomer-dampened design tuned for high-performance and racing applications
• SFI 18.1 certified for sanctioned racing events (where applicable)
• Laser-etched timing marks for accurate ignition timing
• Replaces stock harmonic balancer with a performance-grade upgrade
• Manufactured in the USA by ATI Performance Products
• Designed to withstand extreme RPM and high-horsepower environments

ATI Super Dampers are engineered as direct-fit replacements, making installation straightforward with standard balancer installation tools. Whether building a street/strip machine or a dedicated race engine, the ATI918171 Super Damper provides the crankshaft protection and reliability needed to keep your engine performing at its best.