2009–2020 Dodge RAM HEMI ATI/MMX Super Damper 6% & 18% Overdrive 8-Rib
Upgrade your HEMI-powered RAM with the ATI/MMX Super Damper 8-Rib System, engineered specifically for 2009–2020 Dodge RAM applications. Available in both 6% and 18% overdrive configurations, this premium harmonic damper is designed to provide superior crankshaft vibration control while supporting increased supercharger performance and enhanced engine durability. Developed through a collaboration between ATI Performance Products and MMX, this damper offers the reliability and strength demanded by high-performance street and racing applications.
The ATI Super Damper is widely recognized as one of the most effective harmonic balancers available for modern HEMI engines. Its advanced design helps absorb and control harmful torsional vibrations that can negatively impact crankshaft life, timing components, bearings, and other critical engine parts. By reducing these vibrations, the damper contributes to smoother engine operation and improved long-term reliability.
The integrated 8-rib drive system is specifically designed for high-horsepower applications that require increased belt grip and reduced slippage. Whether your vehicle is equipped with a supercharger or future power upgrades are planned, the 8-rib configuration provides the strength necessary to handle demanding performance conditions.
The 6% overdrive option offers a moderate increase in accessory and supercharger drive speed, making it an excellent choice for enthusiasts seeking additional performance without pushing components to their limits. The 18% overdrive version is ideal for more aggressive builds where maximum supercharger efficiency and increased boost levels are desired.
Manufactured from premium materials and precision-machined to exact tolerances, the ATI/MMX Super Damper delivers exceptional durability and performance. It is commonly used in high-horsepower RAM trucks, drag racing applications, street performance builds, and custom HEMI projects where reliability is essential.
Product Specifications
| Feature | Description |
|---|---|
| Product Name | ATI/MMX Super Damper 8-Rib |
| Manufacturer | ATI Performance Products / MMX |
| Vehicle Fitment | 2009–2020 Dodge RAM |
| Engine Compatibility | 5.7L, 6.1L, 6.2L & 6.4L HEMI Applications |
| Damper Type | Harmonic Balancer / Super Damper |
| Drive Configuration | 8-Rib |
| Overdrive Options | 6% Overdrive or 18% Overdrive |
| Material | High-Strength Precision-Machined Steel |
| Function | Controls Harmonic Vibrations |
| Performance Benefit | Supports Increased Supercharger Drive Speed |
| Application | Street, Racing, and High-Performance Builds |
| Condition | Brand New |
Frequently Asked Questions
| Question | Answer |
|---|---|
| What is the purpose of a Super Damper? | It absorbs harmful crankshaft vibrations and helps protect critical engine components from excessive stress. |
| What is the difference between the 6% and 18% overdrive versions? | The 6% version provides a moderate increase in drive speed, while the 18% version delivers a more aggressive increase for higher-performance applications. |
| Why choose an 8-rib system? | An 8-rib configuration provides greater belt contact and reduced slippage, especially in supercharged applications. |
| Is this suitable for high-horsepower builds? | Yes. The ATI/MMX Super Damper is designed for demanding performance and racing environments. |
| Can it help improve engine reliability? | Yes. By controlling harmonic vibrations, it helps reduce stress on vital engine components. |
| Is this compatible with supercharger setups? | Absolutely. It is commonly used in supercharged HEMI applications requiring increased belt grip and durability. |
| Is professional installation recommended? | Yes. Proper installation ensures optimal performance, alignment, and vibration control. |
Equip your HEMI-powered RAM with the ATI/MMX Super Damper 8-Rib System and benefit from industry-leading vibration control, enhanced durability, superior belt performance, and the confidence needed to support serious horsepower.






Declan Rivers –
I ordered the Dodge RAM HEMI ATI/MMX Super Damper for my imported RAM in Australia, and Dodge Auto Supply delivered excellent service. Ordering was easy, and the product information was accurate. Shipping was efficient, and the part arrived in perfect condition. The damper is built to a very high standard, with excellent machining and solid materials. After installation, the truck gained stronger boost response and more aggressive power delivery. The 8-rib setup improved belt grip significantly, and everything feels much more reliable under heavy load. I’m very happy with this upgrade.
Chase Whitmore –
I ordered the Dodge RAM HEMI ATI/MMX Super Damper 8-Rib from Dodge Auto Supply for my 2021 RAM 1500 supercharged build, and the entire experience was excellent. The website clearly explained the 6% and 18% overdrive options, which made choosing the right setup easy. Checkout was fast and secure, and I received order confirmation immediately. Shipping updates were consistent, and the package arrived earlier than expected. The Super Damper was packaged securely and looked extremely high quality right out of the box. The ATI machining and MMX engineering are top-notch. After installation, boost came on harder, and throttle response improved immediately. The 8-rib setup provides much better belt grip, especially under heavy load. The truck now feels stronger across the RPM range, and the supercharger setup is far more stable. Dodge Auto Supply delivered exactly what was promised.
Gavin Mercer –
I purchased the Dodge RAM ATI/MMX Super Damper for my 2020 RAM Rebel, and I’m extremely impressed with both the product and Dodge Auto Supply’s service. The website made it easy to understand the difference between the 6% and 18% overdrive options. Shipping was fast, and the package arrived safely. The quality of the damper is outstanding—precision-machined and built for serious power. After installation, my supercharger setup became much more efficient. Boost builds quicker, and the truck feels stronger throughout the entire powerband. The belt grip is much better with the 8-rib conversion. This is one of the best upgrades I’ve added.
Colby Harrison –
I purchased the ATI/MMX Super Damper from Dodge Auto Supply for my RAM 1500 in Canada, and I’m very satisfied. Shipping was smooth, and the package arrived safely. The damper was packed securely and looked perfect. The quality is excellent, and installation went smoothly with my supercharger setup. I chose the 6% overdrive option, and the increase in boost was noticeable right away. The truck feels stronger, throttle response improved, and the 8-rib system gives much better belt control. This is a serious performance upgrade for boosted HEMI builds.
Easton Blake –
This was my first time ordering from Dodge Auto Supply, and I’m impressed. I installed the ATI/MMX 18% Overdrive Super Damper on my 2022 RAM 1500, and the difference is huge. The ordering process was simple, shipping was quick, and the part arrived in perfect condition. The build quality is top-tier, and installation was straightforward. After driving the truck, I noticed stronger boost, faster throttle response, and more aggressive acceleration. The 8-rib setup holds power much better with no belt slip. This is one of the best upgrades I’ve done for my boosted HEMI.
Preston Holloway –
My experience ordering the ATI/MMX Super Damper from Dodge Auto Supply was excellent. I installed the 18% overdrive setup on my RAM 1500 5.7 HEMI, and the difference is massive. The ordering process was simple, and all the technical specs were easy to understand. Shipping was quick, and I received updates the whole time. The damper arrived in perfect condition and looked incredibly well built. Installation was smooth, and the fitment was exact. Once installed, I immediately saw higher boost levels and stronger power delivery. The truck pulls much harder now, and throttle response feels sharper. The 8-rib design also eliminated belt slip under hard acceleration. This upgrade is perfect for anyone running boost.
Nolan Barrett –
I ordered the ATI/MMX 8-Rib Super Damper from Dodge Auto Supply for my 2019 Dodge RAM build, and the process was flawless. The website was easy to use, and fitment details were clear. Checkout was secure, and shipping updates were accurate. The package arrived in excellent shape, and the damper looked very high quality. Installation was straightforward, and the build quality is incredible. After putting everything together, the truck felt stronger immediately. Boost response improved, and power delivery became much more aggressive. The overdrive setup really wakes up the supercharger. This upgrade is worth every dollar.