BMW 1 Series Coilover Suspension Kit - Rear - AST - 5100 Series - '04-'13. A road-balanced, 1-way adjustable monotube setup designed for confident daily driving and precise control.

The 5100 STREET NCO kit helps maximize grip by letting you control rebound and ride height. It includes springs, runs OEM top mounts, and on E81/E82/E87/E88 pairs front coilovers with a divorced rear damper and spring like OEM for comfort and control. A 12-position rebound knob fine-tunes return-to-extension and feel, while the monotube, high-pressure design with a large piston delivers consistent, responsive valving with reduced foaming. Dampers are rebuildable, and rear spring rates are fixed and vehicle specific based on extensive testing.

Features

• 1-way rebound damping with 12 distinct clicks
• Ride-height adjustability
• Monotube, high-pressure construction with large piston
• Front coilover; rear divorced layout like OEM
• Includes springs; uses OEM top mounts
• Rebuildable through certified AST service centers

Have questions or need a tailored setup? Call us at 512-982-9393 (TX) or 562-981-6800 (CA). We have locations in Austin, Texas and the Los Angeles, California area where we offer installation and customization services.

Buying multiple items? Contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov