How do I adjust the rebound damping on these coilovers?

You can adjust the rebound damping using the knob located on the top of each damper. There are 12 distinct positions to choose from, allowing you to tailor the suspension's return stroke to your driving needs.

What is the benefit of the monotube design?

The monotube design uses a larger piston, which gives you more precise control over the rebound damping. It also prevents aeration and foaming of the shock oil, resulting in more responsive and consistent damping performance.

Can I adjust the spring rates on these coilovers?

Yes, you have the flexibility to adjust the spring rates on these dampers. The initial setup and spring rates are based on AST's extensive development and testing, but you can fine-tune them to your preferences.

AST Suspension 97-06 BMW 325xi (E46) 5100 Series Coilovers (Inverted)

Specifications

Brand: AST
Part #: ACC-B1104SD
UPC: astACC-B1104SD

AST Suspension 97-06 BMW 325xi (E46) 5100 Series Coilovers (Inverted)

Name: AST Suspension 97-06 BMW 325xi (E46) 5100 Series Coilovers (Inverted)
Brand: AST
Price: 5722.88 USD
Availability: InStock

$5722.88

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2001-2005 BMW 325xi. AST 5100 Series Coilovers let you dial in rebound and ride height for track or street.

Key Features

Direct fit — verified for 2001-2005 BMW 325xi and 330xi
1-way adjustable rebound damping — fine-tune suspension extension for specific driving conditions.
Adjustable ride height — allows you to lower the vehicle for improved aerodynamics and handling.
Monotube damper design — provides consistent damping force and better heat dissipation.
Camber-adjustable front top mounts included — enables alignment tuning for enhanced cornering.
Solid rear top mounts — ensures a firm and direct connection for the rear suspension.

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Fits these vehicles

BMW 325xi 2001-2005
BMW 330xi 2001-2005

Product Details

These are monotube dampers. That means they have a large piston inside, which gives you better control over the rebound adjustment. Monotube designs also prevent air from mixing with the oil, so the damping stays consistent and responsive. Plus, they're rebuildable at a certified AST center if anything goes wrong.