DD501 Proma Star Coilover Shock, Double Adjustable, 11-5/8in. to 16-7/8in.

Want to achieve the benefits of coilover shocks on your vehicle? QA1's Proma Star coilovers are perfect for a wide range of applications, including custom chassis and suspension setups where direct-fit options aren't available. Double-adjustable valving provides a significant upgrade in ride quality and performance. The included hardware kit allows for quick and easy ride height adjustment to dial in the perfect stance for your car. Just add a 2.5" diameter spring with the appropriate spring rate and length to complete the assembly.

DIAL IN THE PERFECT STANCE  

Achieving the perfect, level stance is critical for the overall look and appearance of your car. Proma Star shocks offer ride height adjustability, allowing you to dial in the perfect stance for your Hot Rod, Restomod, or Custom Build. Adjustments can be made with a simple turn of the spring seat nut.  

TUNE YOUR PERFORMANCE & RIDE COMFORT 

Double-adjustable coilovers are ideal for drivers looking for great performance on the street or track. Independent tuning of rebound and compression allows you to fine-tune the handling or straight-line performance of your vehicle for any driving condition. By simply accessing the 18-position knobs, you can make on-the-car adjustments no matter where you are.  

CHOOSE FROM MULTIPLE MOUNTING CONFIGURATIONS  

Proma Star Shocks are offered with either bearing mounts or polyurethane mounts.  

Bearing mount shocks minimize deflection and work well for misaligned mounts. They are ideal for situations where precise handling is required. These accept ½ inch diameter bolts and are 1 inch wide. 

Shocks with poly bushings reduce noise, vibration, and harshness (NVH) making them a good choice for street-driven vehicles. They offer better comfort by absorbing feedback from the road surface. These come with 1/2” and 5/8” diameter sleeves and are 1 1/4" wide. 

Other mounting styles are available (sold separately) for T-Bar and stud-mount applications. Extended eyelets can also be used.   

MADE IN THE USA 

QA1 shocks are proudly made in Lakeville, Minnesota. See a complete video on the manufacturing process. 

BEST-IN-CLASS WARRANTY  

QA1 Proma Star shocks are eligible for a Limited Lifetime Warranty. For peace of mind, simply register your shocks at QA1.net/Warranty to ensure coverage for as long as you own your vehicle. 

FEATURES AND BENEFITS  

• Easily adjust your ride height for the perfect stance. 
• Achieve the ultimate performance handling with independent tuning of rebound and compression. 
• Multiple bushing or bearing configurations available to fit your needs.  
• Limited Lifetime Warranty for peace of mind. 
• Proudly made in the USA. 

FITMENT NOTES 

• Proma Star shocks require a 2 ½-inch inner diameter (I.D.) spring. 
• Spring hardware is included. 
• Shock body diameter is 2 inches. 
• Bearing mount shocks have a 1-inch wide x ½-inch bore bearing size. 
• Bushing mount shocks have a 1 ¼-inch wide bushing with either ½-inch or 5/8-inch bushing sleeves. 
• Shocks can be mounted in any orientation, either body up or down. 
• Required spanner wrench: P/N T114W or T115W (sold separately). 
• Optional thrust bearing kit: P/N 7888-109 (sold separately).