Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Welcome to Atlus Automotive
Main menu
-
Performance
- Performance
-
Intake & Exhaust
- Intake & Exhaust
- Air Intake Systems
- Cold Air Intakes
- Air Intake Components
- Air Filters
- Air Filters - Drop In
- Air Filters - Direct Fit
- Air Filters - Universal Fit
- Pre-Filters
- Recharge Kits
- OE Replacement Air Intake Components
- Exhaust, Mufflers & Tips
- Catback
- Axle Back
- Muffler
- Tips
- Headers & Manifolds
- Connecting Pipes
- Catalytic Converter Direct Fit
- Catalytic Converter Universal
- Exhaust Collector
- Merge Collectors
-
Engine Upgrades
- Engine Upgrades
- Engine Components
- Camshafts
- Valve Springs, Retainers
- Head Gaskets
- Head Stud & Bolt Kits
- Main Stud & Bolt Kits
- Gasket Kits
- Engine Mounts
- Oil Catch Cans
- Oil Separators
- Throttle Bodies
- Throttle Body Spacers
- Crankshaft Dampers
- Valves
- Piston Rings
- Piston Sets - Forged - 4cyl
- Piston Sets - Cast - 4cyl
- Connecting Rods - 4Cyl
- Rotating Assemblies
- Stroker Kits
-
Turbo & Cooling
-
Fuel, Ignition & Tuning
-
Suspension & Handling
- Suspension & Handling
-
Lowering & Coilovers
-
Arms, Links & Alignment
-
Lift & Off-Road Suspension
-
Chassis & Bracing
-
Wheels & Tires
- Wheels & Tires
-
Wheels
-
Tires
-
Drivetrain & Clutch
-
Brakes
- Brakes
-
Pads & Rotors
-
Brake Kits & Calipers
-
Lines, Fluid & Hardware
-
Exterior & Lighting
- Exterior & Lighting
-
Lighting
-
Exterior Styling
-
Bumpers & Protection
-
Interior & Electronics
- Interior & Electronics
-
Interior Upgrades
-
Gauges & Electronics
-
Audio & Safety
-
Overland & Utility
- Overland & Utility
-
Bed Covers & Bed Gear
-
Steps, Racks & Storage
-
Trail & Towing
-
Maintenance & Garage
- Maintenance & Garage
-
Oil, Fluids & Filters
-
Detailing & Car Care
-
Tools & Fabrication
Your cart
-
0-9
-
A
-
B
-
R
-
S
QA1
QA1 MOD Series Piggyback Coil-Over Shock Absorber, Right Hand, Bearing Mount - 11.5in/16.875in - M511PR
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
The QA1 MOD Series piggyback coil-over shock absorber (M511PR) provides elite-level tunability through revolutionary QuickTune Technology. Designed for right-hand installation with a bearing mount, this nitrogen-charged shock allows for rapid revalving using dry modular valve packs—changing the valving without opening the oil path or risking contamination. This design enables independent control over compression and rebound characteristics to suit specific track conditions or vehicle setups.
Engineered for versatility, the M511PR features a 11.5-inch compressed and 16.875-inch extended length. The indexable base eyelet can be unbolted and rotated to ensure optimal canister placement even in tight mounting configurations. Every unit is manufactured in QA1’s Lakeville, Minnesota facility and undergoes 100% dyno testing to ensure consistent, serialized performance.
- QuickTune Technology: Interchangeable dry modular valve packs for fast revalving without oil loss
- 4-Way Adjustable: Independent high and low-speed bleed control for compression and rebound
- Configuration: Nitrogen-charged piggyback canister design
- Mounting: Indexable base eyelet and bearing mount for flexible installation
- Specifications: 11.5" compressed length, 16.875" extended length
- Quality: 100% dyno tested and serialized; Made in the USA
- Manufacturer Part Number: M511PR
📘 Guides & Manuals
Choose your Location
-
Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
Product Comparison
How they are Different
|
__ __ |
|
|---|---|
| Description |
Description - __ |
| Rating |
Rating - __ |
| Vendor |
Vendor - __ |
| Color |
Color - __ |
|
|
Compare products ( / )
The Atlus Price Guarantee
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
QA1 MOD Series Piggyback Coil-Over Shock Absorber, Right Hand, Bearing Mount - 11.5in/16.875in - M511PR
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
Price Match
Our prices are updated daily to ensure we can offer you the best possible price. In the unlikely case that you have found a lower price, please contact us at hello@atlusauto.com and we'll do our best to answer your query right away!
Easy Financing
We've partnered up with Affirm/Shop!
Why use Affirm/Shop?
- Clear application process
- Friendly support team
- Spread a big payment interest-free
- Ability to buy what you want
How does it work?
- Add your purchase to cart
- Select Shop Payments at checkout
- Complete the application
- Compare any available finance options
Share:
The QA1 MOD Series piggyback coil-over shock absorber (M511PR) provides elite-level tunability through revolutionary QuickTune Technology. Designed for right-hand installation with a bearing mount, this nitrogen-charged shock allows for rapid revalving using dry modular valve packs—changing the valving without opening the oil path or risking contamination. This design enables independent control over compression and rebound characteristics to suit specific track conditions or vehicle setups.
Engineered for versatility, the M511PR features a 11.5-inch compressed and 16.875-inch extended length. The indexable base eyelet can be unbolted and rotated to ensure optimal canister placement even in tight mounting configurations. Every unit is manufactured in QA1’s Lakeville, Minnesota facility and undergoes 100% dyno testing to ensure consistent, serialized performance.
- QuickTune Technology: Interchangeable dry modular valve packs for fast revalving without oil loss
- 4-Way Adjustable: Independent high and low-speed bleed control for compression and rebound
- Configuration: Nitrogen-charged piggyback canister design
- Mounting: Indexable base eyelet and bearing mount for flexible installation
- Specifications: 11.5" compressed length, 16.875" extended length
- Quality: 100% dyno tested and serialized; Made in the USA
- Manufacturer Part Number: M511PR
📘 Guides & Manuals
Authencity Guaranteed
We only sell authentic products from verified brand partners and retail partners globally.
Can’t Find the Part You Need?
Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.
Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.
- Choosing a selection results in a full page refresh.
- Opens in a new window.