-9%
Click to zoom in
SKU: DS501 | UPC: 806990059796
QA1 Proma Star Series Coil-Over Shock Absorber - Single Adj. - Bearing Mount - 11.625in/16.875in
QA1 DS501 Proma Star Series coil-over shock delivers single adjustable damping for custom chassis and suspension builds where direct-fit options do not exist. This bearing mount shock offers 11.625-inch compressed height, 16.875-inch extended height and 5.25-inch travel to suit street performance, drag racing and circle track applications. Dial in ride quality with one knob while achieving precise ride height adjustments using included hardware and your choice of 2.5-inch coil spring.
Key Features
- Single Adjustable Valving: Tune compression and rebound together with one knob for street cars needing softer or firmer overall damping without complex adjustments.
- Bearing Mounts: Top and bottom bearing eyelets minimize deflection and allow misalignment in custom mounts for smoother operation.
- Ride Height Adjustability: Threaded spring perch and shock body with included hardware enable quick changes for the ideal stance on any build.
- Made in USA: Dyno tested at QA1's Lakeville, MN facility to ensure consistent performance and quality.
- Limited Lifetime Warranty: Register at QA1.net/warranty prior to installation for long-term reliability.
Product Notes
- Verify shock travel prevents overextension or bottoming out in your application.
- Spanner wrenches and thrust bearings available separately to simplify ride height adjustments.
- Standard shipping box measures 18in x 6in x 6in with product weight of 7.3 lbs.
Installation Notes
- Professional installation recommended.
- Pair with 2.5-inch diameter coil spring of appropriate rate and length.
- Bearing mounts accept 1/2-inch or 5/8-inch bolts. poly bushing sleeves included to reduce noise, vibration and harshness.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Custom Chassis/Suspension | Street/Drag/Circle Track |
Why Choose QA1?
- Over 30 years leading in performance shocks, rod ends and suspension for motorsports.
- 83,000 sq ft manufacturing in Lakeville, MN produces dyno-tested components.
- Engineered for drag racing, street rodding and track use with custom linkage options.
Frequently Asked Questions
-
Q: What vehicles does the DS501 fit?
A: Designed for custom chassis, suspension components or vehicles lacking direct-fit shocks. confirm compressed/extended lengths suit your setup. -
Q: What materials are used in construction?
A: Steel shock body with aluminum spring seat, zinc plating and bearing mounts for durability in performance applications. -
Q: How do I activate the warranty?
A: Register online at QA1.net/warranty before installation to qualify for the Limited Lifetime Warranty.
Shipping & Handling
- Method: Ground shipping
- Availability: In stock - ships same or next business day
- Packaging: Protective box 18in x 6in x 6in
- Weight: 7.3 lbs
QA1
Shop All QA1 Coilovers, Shocks, Springs, Handling Kits & Suspension Components Browse premium QA1 suspension parts and performance components at Black Ops Auto Works, including coilover kits, shock absorbers, lowering kits, handling kits, suspension conversion systems, four-link systems, springs, struts, rod ends, linkage rods, tube adapters, and suspension hardware for muscle cars, trucks, street builds, drag cars, and pro-touring applications. QA1 is one of the most recognized names in the suspension category, known for engineering products that improve ride quality, adjustability, handling, weight transfer, and overall vehicle control. Why Choose QA1 Suspension Products QA1 products are built for enthusiasts looking to improve suspension performance on classic, street, strip, and performance truck platforms. Popular reasons customers choose QA1 include: Adjustable suspension tuning for street and track use Improved handling, ride control, and weight transfer Vehicle-specific...
View QA1 Products
Shocks and Struts
Shop shocks and struts at Black Ops Auto Works for improved ride control, handling, stability, comfort, towing support, off-road performance, and suspension replacement. This collection includes shock absorbers, monotube shocks, gas shocks, hydraulic shocks, strut assemblies, front struts, rear shocks, coil-over shocks, reservoir shocks, steering dampers, suspension hardware, and vehicle-specific dampers for cars, trucks, SUVs, Jeeps, off-road builds, and performance vehicles. Use this Shocks and Struts collection to find the right suspension upgrade by vehicle, ride height, driving style, and product type. Replacement shocks and struts help restore ride quality, performance shocks improve control and stability, heavy-duty truck shocks support larger vehicles and lifted setups, and off-road shocks help improve durability and control on rough terrain. Shop Shocks and Struts by Brand Black Ops Auto Works carries shocks, struts, and suspension dampers from trusted brands including Bils...
View Shocks and Struts Products
Suspension
Aftermarket suspension systems improve handling, ride quality, and ride height adjustment beyond what the factory suspension provides. From lowering springs and coilover kits for sport handling to lift kits and leveling kits for truck and SUV off-road capability, quality suspension components transform how a vehicle rides and handles. Popular Suspension Upgrades Popular suspension upgrades include coilover kits for adjustable ride height and damping, sport lowering springs for improved handling and reduced body roll, performance shock absorbers and strut assemblies, sway bar and end link upgrade kits, subframe brace kits, and complete suspension packages for lifted trucks and off-road SUVs. Alignment kits including camber bolts and camber arms are also frequently ordered after ride height changes. What is the difference between coilovers and lowering springs? Coilovers are complete shock and spring assemblies with adjustable ride height set by threading the spring perch on the shock...
View Suspension ProductsLet customers speak for us
Looks pretty nice
Looks pretty nice, pricing was good and the reinforcement is a big plus.
Randy H.
Black Ops Auto Works
I emailed customer service to inquire about when it would be shipped
I emailed customer service to inquire about when it would be shipped. They checked and emailed me with the answer. Customer service is A1
Ralph J.
Black Ops Auto Works
Installation was easy
Installation was easy. The price is good and it looks great on the truck.
Ralph J.
RHO Small Grille Badge
Looks as good as it fits
Looks as good as it fits,
zachary d.
Seibon 70-73 Datsun 240Z OE Carbon Fiber Hood
Nothing like it
I love it great sound and response
Luis P.
Legmaker Dodge Durango HEMI Short Ram CAI 2011-Present 5.7L
Car totally diferent with the whole kit
Car totally diferent with the whole kit. Ive stood next to wide bodies and my car gets more attention at times . Ive bought the kit twice already.
Ding D.
2015-2023 Dodge Charger Carbon Fiber Wind Splitters
Fantastic emblem! Exactly what I was looking for
Fantastic emblem! Exactly what I was looking for. Great quality emblem.
Jacobus S.
Direct Connection Black Metallic Fender Badge
Worked great for my aftermarket hood on my Chrysler 2023 300C
Worked great for my aftermarket hood on my Chrysler 2023 300C. Thanks
Robert G.
Windshield Washer Squirter Relocation Kit Universal
Easy to install and makes car sound even better
Easy to install and makes car sound even better love the winn
Tracy H.
Legmaker Challenger/Charger Hellcat Demon & Redeye Air Intake
Awesome customer support
Awesome customer support. Had multiple issues with fedex and these guys were excellent in helping me sort everything out. The drop springs are great too! I highly recommend
Anonymous
Swift Spec-R Lowering springs Jeep Grand Cherokee 2011-2021
100/100! perfect CF crafted cold air intake for 6
100/100! perfect CF crafted cold air intake for 6.4 jeep .. even makes my AWE exhaust sound even deeper and you cam here this thing sucking when accelerating even at normal speeds🥶
srt.boizzz
Legmaker 392 TH Short Ram Jeep Grand Cherokee SRT 2012-2021
