-10%
AST AST Suspension BMW M5 G99 Adjustable Lowering Springs
Click to zoom in

AST Suspension BMW M5 G99 Adjustable Lowering Springs

AST
ASTASTALS-21-021
ASTALS-21-021
Lowering Springs
20+ Units In Stock - Ships Next Business Day
$ 1,480.00 $ 1,332.00
$ 1,332.00

SKU: ASTALS-21-021

AST Suspension BMW M5 G99 Adjustable Lowering Springs 2025+

AST Suspension adjustable lowering springs provide precise height control for the 2025+ BMW M5 G99 chassis with 10-30mm front drop and 20-45mm rear drop. These springs improve cornering grip reduce body roll and preserve daily drivability when paired with stock dampers. Direct bolt-on design installs on G99 platform without modifications.

Key Features

  • Adjustable Height: Threaded perches deliver 10-30mm front and 20-45mm rear drop for custom stance and alignment adjustments.
  • Chrome Silicon Steel: High-tensile progressive wound construction resists sagging under high-speed track loads.
  • Linear Spring Rates: Front 6.8 kg/mm rear 11.2 kg/mm ensure balanced response and comfort matching OEM ride quality.
  • Direct Fitment: Engineered for BMW M5 G99 OEM strut mounts requires no additional hardware.
  • Corrosion Resistant: Dual-layer powder coat and e-coat finish protects against road salt and harsh conditions.

Product Notes

  • Pair with upgraded dampers for track use to optimize damping rates.
  • Realign suspension after installation to restore camber and toe settings.
  • Ships fully assembled ready for install weight 22.5 lbs.

Installation Notes

  • Professional installation recommended.
  • Use spring compressor tool for safe removal of OEM springs.
  • Compatible with factory BMW strut assemblies torque to OEM specs.

This Part Fits

Year Make Model Submodel
2025+ BMW M5 Sedan (G99)

Why Choose AST Suspension?

  • Proven in GT3 racing and supplied to professional teams worldwide.
  • Hand-assembled in Netherlands with rigorous dyno testing.
  • Precision tolerances match BMW engineering standards.

Frequently Asked Questions

  • Q: Will these fit the 2025 BMW M5 G99?
    A: Yes designed specifically for G99 chassis including hybrid powertrain clearance all submodels.
  • Q: What spring material is used?
    A: Aerospace-grade chrome silicon steel with progressive winding for progressive load handling.
  • Q: What is the warranty and install process?
    A: 1-year manufacturer warranty covers defects professional install takes 2-4 hours per corner alignment required after.

Shipping & Handling

  • Method: UPS Ground or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Protective cardboard box 24 x 14 x 8 inches
  • Weight: 22.5 lbs

Request For Information

Have questions about AST Suspension BMW M5 G99 Adjustable Lowering Springs? Fill out the form below and we'll get back to you by the next business day.
AST

AST

AST Suspension coilovers and dampers for BMW M3, M4, and M5, Porsche 911, Volkswagen Golf and ID Buzz, Audi platforms, Toyota Supra, and Honda Civic Type R are stocked at Black Ops Auto Works. Shop AST 4150 and 5100 series coilovers, single and double adjustable dampers, and complete suspension kits engineered for European and Japanese track and street applications. Every kit is filterable by year, make, model, and trim so the correct application ships the first time. Black Ops Auto Works carries 269 AST Suspension SKUs across coilover, damper, and component categories. What This Brand Covers AST Suspension is a Netherlands based manufacturer specializing in high end coilovers and dampers engineered from motorsport experience, supplying suspension components to touring car and GT racing teams before adapting the technology for street and track day applications. AST kits are built around precision valving and adjustable damping to give drivers control over both ride quality and h...

View AST Products
BMW M Series Models Parts & Accessories

BMW M Series Models Parts & Accessories

BMW M Series parts and accessories for M2, M3, M4, M5, and M8 models are stocked at Black Ops Auto Works. Shop cat-back and slip-on exhaust systems, carbon fiber tail pipes, headlight and taillight upgrades, carbon fiber hoods and grilles, intake valves, engine components, water pumps, and interior accessories for E46, E90, E92, F80, F82, F90, G80, G82, G87, and G90 chassis codes. Every product is filterable by year, make, model, chassis code, and trim so the correct part ships the first time. Black Ops Auto Works carries 1,328 BMW M Series SKUs across exhaust, lighting, engine, exterior, and interior categories. What This Collection Covers BMW M Series models span multiple chassis generations with different engine platforms, from the naturally aspirated S54 and S65 engines to the twin-turbo S55 and S58 engines found in current M3 and M4 models. This collection groups parts confirmed to fit the specific M chassis code and engine so E46 M3 owners, F80/F82 owners, and G80/G82 S58 ...

View BMW M Series Models Parts & Accessories Products
Lowering Springs

Lowering Springs

Shop lowering springs from Eibach, H&R, Swift Springs, RS-R, UMI Performance, MaxTrac, aFe Control, Ford Racing, Whiteline, Vogtland, ST Suspensions, Belltech, Skyjacker, and Black Ops Auto Works. Find sport lowering springs, Pro-Kit springs, Sportline springs, Spec-R springs, Super Sport springs, Race springs, Down Sus springs, adjustable lowering springs, SUV lowering springs, truck lowering springs, and EV lowering springs for street cars, muscle cars, sport compacts, European performance platforms, SUVs, trucks, and modern EV builds. Lowering springs are the simplest way to drop a vehicle’s ride height. They keep the OE shocks, upper mounts, and suspension geometry components in place and swap only the coil springs for shorter, progressively- or linearly-wound performance springs. Shop by vehicle year, make, model, trim, drop height, spring type (progressive vs linear), and application (street, show, mild-handling, SUV, EV, truck). Lowering springs are the correct choice...

View Lowering Springs Products
Suspension

Suspension

Suspension parts and complete kits for cars, trucks, SUVs, Jeeps, and off-road builds are stocked at Black Ops Auto Works. Shop coilovers, lowering springs, lift kits, leveling kits, shocks and struts, sway bars, control arms, tie rods, ball joints, bushings, chassis bracing, alignment hardware, air suspension, and complete stage kits from Bilstein, KW, Ohlins, Fox, KING, ICON, BC Racing, Silvers, Eibach, H&R, Swift Springs, Whiteline, Energy Suspension, Moog, SPC Performance, Rough Country, ReadyLIFT, BDS, Skyjacker, Air Lift, Firestone, and Black Ops Auto Works. Start with a matched shock and spring package or a full coilover kit, then layer in sway bars, chassis bracing, and camber adjustment hardware. Every part is filterable by year, make, model, trim, and drivetrain to confirm fitment before ordering. What This Category Covers Suspension is the highest-leverage handling upgrade on any vehicle. A properly matched shock, spring, and sway bar package produces measurable i...

View Suspension Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×