MOD™ Series Shocks

​​MOD Series by QA1 - The first and only on-the-car revalveable shock!

MOD™ Series Shocks - The First On-The-Car Revalveable Shock!

Designed specifically to meet the demands required by today’s high performance drag race and handling/pro-touring cars, QA1’s new multi-patent-pending MOD™ Series shock can be completely revalved in minutes while remaining on the car, saving racers time and money.

MOD Custom Mount Shocks - Learn More MOD Front Pro Coil Systems - Learn More MOD Rear Pro Coil Systems - Learn More MOD Valve Packs - Learn More

VIDEO: MOD™ Series Shocks from QA1

VIDEO: QA1 MOD™ Series: QuickTune™ Technology


Precision Tunability
double adjustable with low speed bleedThey also feature a double adjustable design with adjustable low-speed bleed for fully independent control over the compression and rebound characteristics. These shocks are some of the most capable shocks on the market today with their impressive force curve capabilities and high levels of tunability. 


Modular Valve Packs
Modular Valve PacksThe key element to this range of adjustment is the QuickTune™ Technology – modular valve packs that can easily be swapped out. Never before could you change the valving characteristics this much without completely disassembling the shock. Using QuickTune™ Technology, MOD™ Series shocks can be revalved in minutes without interrupting the oil path and opening the shock up for debris and air contamination, all while the shock remains on the car.


Nitrogen Canister
Nitrogen CanisterThe nitrogen-charged canister is available in a piggyback or remote configuration for ease of installation in tight areas.



Mounting Flexibility
Mounting FlexibilityThe base eyelet is indexable, so you can unbolt it and reattach it at the angle you need for the best shock and canister placement



All MOD™ Series shocks are proudly made in QA1’s Lakeville, Minnesota facility.

We offer a full line of custom mount options as well as application-specific front and rear MOD™ Series Pro Coil shock systems including:

  • GM A-Body
  • GM B-Body
  • GM F-Body
  • GM G-Body
  • GM X-Body
  • C10
  • C1500
  • Ford Mustang
  • Ford Galaxie/Full Size
  • & More!
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Learn more about our full line of products.