-10%
Sold out
Click to zoom in
SKU: ASTLS-21-182 | UPC: astASTLS-21-182
AST Suspension Lowering Springs - 2021+ BMW G82 M4 30mm/30mm
AST Lowering Springs ASTLS-21-182 deliver a 30mm drop front and rear on 2021-2024 BMW M4 models including Base, Competition, Competition xDrive, CSL and M440i xDrive Coupe. These direct OEM replacements lower the center of gravity for sharper handling while retaining familiar ride comfort. Vehicle-specific design ensures precise fit and progressive rates for balanced performance on street or track.
Key Features
- 30mm Front/Rear Drop: Reduces center of gravity for better cornering grip and aggressive stance without sacrificing daily drivability.
- Progressive Spring Rates: Provides smooth compliance over bumps combined with firm control during aggressive driving.
- Cold-Coiled on Wafios Machines: Ensures consistent tolerances and strength using high-tensile chrome-silicon steel construction.
- Shot-Peened Finish: Increases fatigue resistance for long-term durability under high stress loads.
- Lifetime Warranty: Covers defects and breakage, backed by engineering trusted across 3000+ vehicle models since 1966.
Product Notes
- Direct replacement for factory springs, no additional modifications required.
- Designed for OEM shock compatibility, maintains factory alignment specs.
- Packaged as complete set of four springs for easy ordering and install.
Installation Notes
- Professional installation recommended.
- Full vehicle alignment required after installation to restore proper camber and toe.
- Compatible with factory struts, mounts and control arms, no special hardware needed.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2024 | BMW | M4 | Base |
| 2021-2024 | BMW | M4 | Competition |
| 2021-2024 | BMW | M4 | Competition xDrive |
| 2023-2024 | BMW | M4 | CSL |
| 2021-2024 | BMW | M440i xDrive | Base |
Why Choose AST Suspension?
- Proven track record with applications for 3000+ models from 1966 to 2024.
- High-tensile chrome-silicon steel construction for repeated high-performance use.
- Precision vehicle-specific tuning matches OEM geometry for plug-and-play results.
Frequently Asked Questions
-
Q: Do these fit 2022 BMW M4 Competition xDrive G82?
A: Yes, perfect fit for 2021-2024 BMW M4 Competition xDrive Coupe, direct OEM spring swap. -
Q: What material and manufacturing process?
A: High-tensile chrome-silicon steel, cold-coiled on Wafios CNC machines, shot-peened for superior fatigue life. -
Q: What does the lifetime warranty cover?
A: Protects against sagging, cracking or breaking under normal use, no registration needed.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Set of 4 springs in protective cardboard box, 18 x 7 x 7 inches
- Weight: 11 lbs
AST
AST Suspension builds some of the most precisely engineered dampers available for performance and competition vehicles. Whether you're building a dedicated track car, a dual-purpose street/track machine, or a show car that needs dialed-in stance and handling, AST's lineup of coilovers and shock absorbers delivers the adjustability and build quality serious drivers demand.Popular UpgradesThe AST 4100 series coilovers are a favorite for street-driven enthusiasts wanting meaningful performance gains without sacrificing ride quality. The 4150 and 5100 series step up to more aggressive damping curves suited to autocross and circuit work. AST also offers remote reservoir setups and custom valving for purpose-built race applications where every tenth matters.Are AST coilovers adjustable for ride height?Yes. AST coilovers feature threaded spring perch adjustment, allowing you to dial in ride height independently of shock travel. Many models also offer rebound and compression damping adjustm...
View AST Products
Lowering Springs
Shop lowering springs at Black Ops Auto Works for improved stance, reduced wheel gap, sharper handling, better road feel, and a more aggressive performance look. This collection includes sport springs, performance lowering springs, SUV lowering springs, Pro-Kit springs, Spec-R springs, Super Sport springs, OE sport springs, lowering coil kits, front lowering springs, rear lowering springs, and vehicle-specific suspension upgrades for cars, trucks, SUVs, EVs, muscle cars, and performance platforms. Use this Lowering Springs collection to find the right spring setup by vehicle platform, drop amount, brand, suspension type, and driving goal. Lowering springs are a popular suspension upgrade for drivers who want a lower stance, improved cornering stability, reduced body roll, better wheel fitment, and a cleaner appearance without moving to a full coilover system. Shop Lowering Springs by Category Black Ops Auto Works carries lowering springs and performance spring upgrades across key ca...
View Lowering Springs 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
