RIV-B1103SD is a vehicle-specific AST 5200 2-Way Motorsport suspension kit for the applications listed below. A two-way adjustable monotube motorsport coilover kit with separate rebound and compression control, ride-height adjustment and external reservoirs. Springs and top mounts are included where applicable.
Vehicle applications
Match the chassis, model, model year and drivetrain to your car. Contact GSM Performance with the registration or VIN if any detail is uncertain.
| Make |
Model |
Chassis |
Years |
Drive |
Notes |
| BMW |
M3 |
E46 |
2000–2006 |
RWD |
— |
Setup and installation
Spring rates and the supplied mounting parts are selected for the application. Have the kit installed and aligned by a suspension specialist, then check wheel, tyre and body clearance through the full steering and suspension travel. Follow the instructions supplied with the kit.
Ordering and lead time
This kit is made to order. The supplier currently advises an approximate four-week lead time, but this can change. Contact GSM Performance before booking installation if timing is critical.
Product image
The manufacturer image is a representative sample for this suspension family, not a photograph of this exact vehicle-specific part number. Component shapes, mounts, spring layout and supplied contents can differ by application.
Brand and product-family information: AST Suspension. Application and pricing source: supplier catalogue.
Have you written anything about this car?
Yes: The Best Coilovers For Your BMW E46 3 Series And M3 compares every kit we list for the car, from lowering springs up to 3-way coilovers, with what each one is for.
Will this fit my car?
This listing is for the BMW M3 E46. Chassis code, model year, engine and drivetrain all matter, and AST often use different part numbers for cars that look the same, so check your car against the vehicle table in the description. If anything is unclear, send us your registration or VIN and we will check it before you order.
What can I adjust?
The AST 5200 2-Way Motorsport is a monotube coilover with independent rebound and compression adjustment, and the ride height is adjustable too.
What comes in the kit?
Coilovers front and rear with external reservoirs. Camber-adjustable front and solid rear top mounts are included where applicable. Springs are included.
Is it right for road or track?
It depends how much of your driving is on track. Our guide Fast Road Or Track: Choosing The Damping On A Set Of Coilovers explains what 1-way, 2-way and 3-way adjustment gets you. Our AST Suspension At GSM Performance: The 5100, 5200 And 5300 Explained guide puts the three AST ranges side by side.
Can I fit it myself?
Our guide Fitting Coilovers At Home Or Having Them Done covers what the job involves. Either way, have the wheel alignment checked after fitting and check wheel and tyre clearance through full steering lock and suspension travel.
Can they be rebuilt?
Yes. AST and MOTON dampers are rebuildable through an authorised AST x MOTON service centre, and how often depends on how hard the car is used. Ask us and we will point you in the right direction.
How long does it take?
Each kit is made to order and the supplier currently quotes about four weeks. That can change, so if you have a fitting date booked, ask us before you order and we will confirm it.
More about this kit.
What lead time is listed for RIV-B1103SD?
The catalogue lead time for RIV-B1103SD is: Made to order - approximately 4 weeks. This is an ordering estimate, not a guaranteed delivery date. Confirm current availability and timing with us before relying on it.
What damping adjustment is listed for RIV-B1103SD?
The catalogue lists “Independent rebound and compression adjustable” for RIV-B1103SD. Use the instructions for the exact kit to identify and set its controls.
Which top mounts are listed for RIV-B1103SD?
The catalogue lists: Front camber-adjustable and solid rear top mounts included where applicable. Check the exact application and configuration to establish which mounts are supplied or reused. The representative photograph cannot confirm the mount hardware for every car.
What ride-height information is listed for RIV-B1103SD?
For RIV-B1103SD, the catalogue gives: “Ride-height adjustable”. Use any front and rear figures with their listed vehicle and fitting conditions. Ask the installer to check the finished clearances and alignment.
AST suspension: allow 3 to 5 weeks
Allow 3 to 5 weeks from your order for your AST suspension to reach you.
Need it by a particular date? Write the date in the order comments box at checkout when you order.
