SKU: 69303158257

QA1 Pro Rear Weld-In Coil-Over System - MOD Series - 12in x 130lbs/in - 3.25in Tube - Aluminum

Sale price$1223.55 Regular price$1359.50
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

QA1 Pro Rear Weld-In Coil-Over System - MOD Series - 12in x 130lbs/in - 3.25in Tube - AluminumUpgrade your rear end with QA1's Pro Rear System. Available in the MOD series, double adjustable, single adjustable and ride sensitive valving non adjustable options,each adjustment has been carefully defined to provide the ideal horse curve to maximize performance. With evenly spaced valving changes throughout the adjustment range, there are no jumps when adjusting between any two clicks. These Pro Rear Systems are commonly used in drag racing,

Upgrade your rear end with QA1's Pro-Rear System. Available in the MOD series, double adjustable, single adjustable and ride sensitive valving non-adjustable options,each adjustment has been carefully defined to provide the ideal horse curve to maximize performance. With evenly spaced valving changes throughout the adjustment range, there are no jumps when adjusting between any two clicks. These Pro-Rear Systems are commonly used in drag racing, street performance and street rod applications. Available in Simultaneous Compresion and Rebound Single Adjustable (DS), Independent Compression & Rebound Double Adjustable (DD) or Ride Sensitive Non-Adjustable (ALN), Coil-Over, Lightweight Aluminum, Ride Height Adjustable, Spring Mounting Hardware Included, 100% Dyno Tested and Serialized, Revalveable and Rebuildable by the QA1 Factory or QA1 Authorized Service Centers, Precision Machined Aluminum Piston with PTFE Piston Band, 5/8" Centerless Ground, Hard Chrome Plated, Solid Piston Rod, Three Step Sealing System, Available to Fit 3" or 3.25" Diameter Axle Tubes, Made in the USA, , Kit includes:, (2) Proma Star Shocks or Aluma Matic Shocks, (2) Linear or Variable Rate Springs, All Mounting Hardware.

  • Available with MOD Series, double, single or non-adjustable valving options
  • Excellent DIY solution for drag, street performance & street rodders alike
  • All mounting hardware included
  • Made in the USA
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 69303158257

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Calvin
Louisville, US
★★★★★ 5
The best to use, and recommended by VW/Audi with TDI engines
Size: 1 Quart Pack of 6
The only one to use with TDIs
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Reviewed in the United States on April 8, 2026
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KatyN
Belleville, US
★★★★★ 5
Recommended oil for 2014 volvo s-60
Size: 1 Quart Pack of 6
The recommended oil for my 2014 Volvo s-60
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Reviewed in the United States on April 24, 2026
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Amazon Customer
Massapequa, US
★★★★★ 4
It works.
Size: 5 Quarts, Pack of 3
Ran this for 5k and did oil analysis. It performed identically to Mobil 1 ESP 5w30. No issues, stayed in grade, nothing negative. That said, it was no better than ESP and wear metals were functionally the same as multiple other similar rated oils. It’s perfectly fine, but not better. It’s a great value. I wouldn’t use it for extended oil change intervals. No oil consumption noted.
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Reviewed in the United States on March 23, 2026
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Carol
Lexington, US
★★★★★ 5
Great oil
Size: 1 Quart Pack of 6
Love it.
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Reviewed in the United States on April 18, 2026
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Big Chad
Louisville, US
★★★★★ 5
Euro oil 🛢
Size: 5 Quarts, Pack of 3
Good deal
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Reviewed in the United States on March 22, 2026

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