QA1 DS501-12130 Pro-Drag Rear Coilover Shock Kit Single Adjustable 130 lb Springs

Manufacturer

Part Number

DS501-12130

8 reviews

Sale Price

$823.95

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Show details for QA1 DS501-12130 Pro-Drag Rear Coilover Shock Kit Single Adjustable 130 lb Springs

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QA1 DS501-12130 Pro-Drag Rear Coilover Shock Kit Single Adjustable 130 lb Springs — image 1

QA1 DS501-12130 Pro-Drag Rear Coilover Shock Kit Single Adjustable 130 lb Springs — image 2

Product Details

The QA1 DS501-12130 Pro-Drag Rear Coilover Shock Kit is engineered for serious drag racing applications, delivering consistent, tunable rear suspension performance. Designed for vehicles in the 1,301–1,500 lb. vehicle weight class, this kit pairs single adjustable Proma Star shocks with linear rate springs to give you precise control over rear suspension dynamics at the strip.

Each kit includes two Single Adjustable Proma Star coilover shocks that allow rebound damping adjustments to fine-tune launch characteristics and weight transfer. The included 130 lb./in. linear rate springs provide predictable, consistent compression throughout the suspension travel — critical for repeatable 60-foot times and straight-line stability.

Kit Includes:

2 Single adjustable Proma Star coilover shocks
2 Linear rate springs — 130 lb./in. rate (12-130)
All necessary mounting hardware

Key Features:

Single adjustable damping — tunable rebound for drag-specific suspension tuning
Linear rate springs for consistent, predictable rear suspension behavior
Designed for vehicles weighing 1,301–1,500 lbs.
Complete bolt-in kit with all mounting hardware included
Pro-Drag series — purpose-built for drag racing performance

The QA1 Pro-Drag Rear Coilover Kit is a proven solution for bracket racers, street/strip builds, and dedicated drag cars looking to maximize traction and consistency without complex multi-adjustable setups.

Products specifications

Adjustable Mounting Bracket Included

Yes

Adjustable Valving

Yes

Bushing Color

Natural

Bushing Material

Steel

Coil-Over Kit Position

Rear

Coil-Over Springs Included

Yes

Collapsed Length (in)

11.625 in.

Crossmember Included

Yes

Extended Length (in)

17.000 in.

Gas Charged

Linear Rate Springs

1301-1500 lbs (12-130 Springs)

Lower Mount

Eyelet

Notes

Includes 12 in. coil-over springs. Shocks are remote ready, they can be used with the QA1 two or four channel remote adjustable system.

Number of Valving Selections

Quantity

Sold as a kit.

Recommended Rear-End Weight

1,301-1,500 lbs.

Shock Body Finish

Clear anodized

Shock Body Material

Aluminum

Shocks Included

Yes

Spring Finish

Silver powdercoated

Spring Rate (lbs/in)

130 lbs./in.

Suspension Height Adjustment

Stock

Upper Mount

Eyelet

Welding Required

Yes

Title

QA1 Shock Absorber and Coil Spring Assembly DS501-12130

Prop 65

WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov

Fast Shipping. Good packaging. Very good pricing. Will shop from again.

mim1979

Easy payment method

Doug Walz

Great price and received item in a timely and in great condition. Will definitely shop here again!

Angelito

After searching for the best prices for the product that I wanted, I ended up with Autoplicity. I quickly got a response that my product has just been shipped and I am very impressed that Autoplicity is giving me an incentive to write a review on them. This tells me that this company is very concerned with the satisfaction of their customers. I am currently waiting for the order to arrive, but so far, I am extremely confident and happy with Autoplicity!

MYKE-O

Fast and easy !

jonathan

Customer Care took care of my return and refunded the shipping after there was some order confusion. Thank you for taking care of everything!

VikingOG

Wow that was fast. I ordered a Pertronix Ignitor conversion kit. Not only were they by far the lowest price I could find, they shipped within hours of submitting the order. I got the shipment in less than 24 hrs, even though I ordered ground shipping. I was a little bummed that they did not offer free shipping, as I am used to with other online places, but with their fast turnaround, I am not begrudging it. Sure it might have been because they have a warehouse nearby, but it was still unexpectedly impressive. The part arrived and looks like it all there and should be good to go. <br><br>I can't vouch for their customer service, but so far I am pleasantly surprised.

Thesparrow

My Superchips Cortex arrived within a few days of order and by far was the best price arround. Product arrived in perfect condition and worked as described. Great deal. Order #10984

shotfritz

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