ATI Damper 7.074in Aluminum 6 Groove 3% Underdrive 1Pc Race Version (20082015 Mitsubishi Evo X) ATI918254
Race-Ready 7.074in Aluminum Super Damper for Mitsubishi Evo X
The ATI 7.074-inch Aluminum Super Damper Race Version (part ATI918254) is built for serious performance enthusiasts and professional racers running the 20082015 Mitsubishi Lancer Evolution X. With a lightweight 1-piece aluminum construction, 6-groove pulley, and a 3% underdrive ratio, this damper offers unmatched vibration control and rotational stability at extreme RPM. Its designed to withstand the rigors of competition, reduce parasitic drag, and deliver consistent reliability under boost, heat, and load.
Performance Highlights
- 7.074-inch outer diameter enhances harmonic control at high engine speeds
- 3% underdrive design frees up horsepower by reducing accessory drag
- 6-groove pulley compatible with factory Evo X belt configuration
- 1-piece aluminum race construction for reduced mass and maximum strength
- SFI 18.1 certified for professional competition and safety compliance
- Fully rebuildable for long-term, serviceable performance
Quick Specs
- Outer Diameter: 7.074 inches
- Material: Aluminum
- Pulley Type: 6 Groove
- Design: 1-Piece Super Damper Race Version
- Drive Ratio: 3% Underdrive
- Certification: SFI 18.1
- Application: 20082015 Mitsubishi Lancer Evolution X
- Part Number: ATI918254
Why Choose ATIs Race Version 3% UD Super Damper?
When every fraction of a second counts, the ATI918254 Race Version Super Damper gives you the precision and reliability needed to dominate. The larger 7.074-inch diameter improves torsional control and damping efficiency, while the underdrive ratio lightens the load on accessories for measurable horsepower gains. Designed and tested for motorsport use, its the ultimate choice for high-boost Evo X builds running at the edge of performance.
Frequently Asked Questions
Is this damper a direct bolt-on for the Evo X?
Yes. The ATI918254 Race Version Super Damper is a direct-fit upgrade for all 20082015 Mitsubishi Lancer Evolution X 2.0L Turbo engines.
Whats the difference between this Race Version and the standard Super Damper?
The Race Version is optimized for high-RPM, high-boost, and competition environments, offering enhanced strength and damping efficiency compared to the standard street model.
Will the 3% underdrive affect accessory performance?
No. The 3% underdrive slightly reduces accessory speed to free up power without compromising alternator, A/C, or power steering function.
Can this damper handle track and drag racing conditions?
Absolutely. The ATI918254 is SFI 18.1 approved and proven to perform reliably in demanding race environments, including drag, time attack, and road course applications.
Vehicle Fitment
- 2008 Mitsubishi Lancer Evolution X 2.0L Turbo
- 2009 Mitsubishi Lancer Evolution X 2.0L Turbo
- 2010 Mitsubishi Lancer Evolution X 2.0L Turbo
- 2011 Mitsubishi Lancer Evolution X 2.0L Turbo
- 2012 Mitsubishi Lancer Evolution X 2.0L Turbo
- 2013 Mitsubishi Lancer Evolution X 2.0L Turbo
- 2014 Mitsubishi Lancer Evolution X 2.0L Turbo
- 2015 Mitsubishi Lancer Evolution X 2.0L Turbo
Contact Beefcake Racing
Beefcake Racing is your trusted source for ATI Race Dampers and high-performance Mitsubishi Evolution X upgrades. For product support or to order, email sales@beefcakeracing.com or call 1-855-827-7223. Our performance specialists are ready to help you choose the perfect damper for your build.
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