AST 5100 Series Monotube Coilovers BMW E90 3 Series non-M 06+

Taking the knowledge and experience learned with the 4000 Series of dampers, AST is now building the new 5000 Series dampers.One key feature on the 5000 series shocks is modularity, which makes them easily upgradeable. This provides an upgrade path for customers on a tight budget that want an adjustable, high performance, race-ready shock but can't quite afford the double adjustable 5200 or triple adjustable 5300. Simply purchase 5100s, and when you're ready, send your ASTs to an authorized rebuild center to upgrade them to 5200s or 5300s with remote reservoirs. Rest knowing that your shock absorber investment will perform today and in the future, as your budget and needs grow.

Features:

High end, track ready suspension that is totally streetable

Modular design - Fully upgradeable to 5200 or 5300 spec

Rebound Adjustable ("Singles"), without reservoir

Certain models will have remote reservoirs, for adequate travel

44.5mm diameter shaft struts, Inverted

Aluminum cylinder, threaded body shocks, factory mounting style

Synthetic hydraulic fluid

Spring Rate:

The GT package is 450#/in Front, 450#/in rear

The GTS package is 550#/in Front, 600#/in rear

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Note:Photo may differ from actual product.