What is the advantage of a monotube damper design?

Monotube dampers use a large piston and have no internal aeration or foaming. This results in more responsive valving and consistent damping performance, especially under demanding conditions.

Can I adjust the spring rates on these coilovers?

Yes, the manufacturer states you have the flexibility to adjust spring rates on these dampers. The initial setup is based on extensive development, but individual preferences can be fine-tuned.

Are these coilovers rebuildable?

Yes, these dampers are rebuildable. If any damage or issues arise, they can be addressed at a certified AST service center.

Specifications

Brand: AST
Part #: ACC-B1502S
UPC: ACC-B1502S

AST 86-91 BMW M3 E30 RWD 5100 Comp Coilovers w/ Springs & Top Mounts

Name: AST 86-91 BMW M3 E30 RWD 5100 Comp Coilovers w/ Springs & Top Mounts
Brand: AST
SKU: ast-ast-86-91-bmw-m3-e30-rwd-5100-comp-coilovers-w-springs-top-mounts-t14-679718
Price: 6582.40 USD
Availability: BackOrder

$6582.40

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AST 86-91 BMW M3 E30 RWD 5100 Comp Coilovers w/ Springs & Top Mounts. Optimize grip and road balance for track or daily driving.

Key Features

Fits 1986-1991 BMW M3 E30 RWD.
Monotube dampers offer a large piston for precise rebound damping control.
Features 1-way adjustable rebound damping with 12 distinct positions.
Adjustable ride height allows you to set your vehicle's stance.
Includes front and rear springs.
Front top mounts are camber-adjustable for enhanced wheel alignment control.

This coilover kit is specifically designed for the 1986-1991 BMW M3 E30 RWD models.

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About this part

Product Details

If you're taking your BMW M3 E30 to the track or looking for a more balanced feel for daily driving, the AST 5100 Competition Coilovers are a solid choice. This system is designed to help you fine-tune your car's grip by giving you control over rebound damping and ride height. You get a complete package with springs and top mounts included for both the front and rear.

The monotube design of these dampers is a key feature, using a large piston to manage rebound adjustments. This design helps prevent aeration and foaming, leading to more responsive valving and consistent handling. You can adjust the rebound in 12 distinct positions, allowing you to dial in the perfect ride characteristics for your specific needs. The front top mounts are also camber-adjustable, giving you further control over your front-end geometry and grip. The rear top mounts are solid for a direct connection.

AST builds these coilovers with the understanding that performance needs can change. That's why they are rebuildable at a certified AST service center, meaning you can address any issues and keep them performing optimally for years to come. The initial spring rates are based on extensive development, but you have the flexibility to adjust them and fine-tune the rebound to match your driving style and track conditions.