• AST Suspension 5200 Series Coilovers - 1985-1991 BMW 3 Series 325i (E30)
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AST Suspension 5200 Series Coilovers - 1985-1991 BMW 3 Series 325i (E30)

AST Suspension 5200 Series Coilovers - 1985-1991 BMW 3 Series 325i (E30)

RIV-B1501S

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$7,016.67 USD
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The AST 5200 Series Coilovers for the 1985-1991 BMW 3 Series 325i (E30) are high-performance suspension components designed for precise handling and adjustable ride dynamics. These coilovers feature 2-way adjustable shock absorbers, allowing users to fine-tune compression and rebound settings independently. Built upon competition-grade technology, the shocks incorporate an evolved compression adjuster inspired by the American Grand-Am series, ensuring quick and straightforward setup. The design emphasizes durability and responsiveness, making them suitable for both street and track applications. Their adjustable nature provides enhanced control over vehicle behavior, improving cornering stability and overall ride quality.

These coilovers are specifically engineered for the E30 chassis, fitting 1985-1991 BMW 3 Series 325i models. They serve as direct replacements for stock suspension components, offering an upgrade for enthusiasts seeking improved handling and customization. Installation is straightforward for those familiar with suspension work, with the kit including the necessary shock absorbers and mounting hardware. Ideal for track days, spirited driving, or performance tuning, these coilovers enable precise suspension tuning to match various driving conditions. They are designed to deliver consistent performance and durability over time, making them a reliable choice for BMW owners aiming to enhance their vehicle's dynamics.

Overview

The 5200 Series for the 1985-1991 BMW 3 Series 325i (E30) are 2-way adjustable shock absorbers which are based upon competition 3-way adjustable shock absorbers. The 5200 shock absorbers are adjustable in compression and rebound.

The design of the compression adjuster is an evolution of the compression adjuster we provided for the American Grand-Am series for the last few years. The 5200 shock absorbers were designed to achieve a quick and easy set up, allowing separate adjustment of compression and rebound.

The 5200 Series AST uses an external canister. Throughout testing and competitions, the 5200 has been praised for its performance and capabilities, surpassing other major, more expensive brands and setting a new standard of 2 way damper. Its no surprise that the 5200 is fast becoming a favorite damper amongst race teams and track day enthusiasts world wide.

Features

  • High end, track ready suspension that is totally streetable.
  • Fully upgradeable to 5300 spec.
  • Rebound and Compression Adjustable (Doubles), with a remote reservoir.
  • Remote reservoirs allow additional travel and heat dissipation.
  • 44.5mm diameter shaft struts are inverted and offer exceptional strength, which in turn reduces geometry change under corner and braking monoevers.
  • Aluminum cylinder, threaded body shocks, factory mounting style.
  • New low friction seal on all AST dampers.
  • Spherical lower eye shock mounts.
  • Reservoir with hose or piggyback (piggyback examples: 2008 STI; BMW E36 rears).
  • Spherical upper shock mount assemblies.
  • Synthetic hydraulic fluid.
  • Optional DLC (diamond like carbon) coated shafts.
  • Optional DDP (double digressive piston).
    • Double Digressive Pistons are recommended for use on the non-driven wheels.
    • 4WD/FWD vehicles: DD pistons for both rear axle struts/shocks.
    • RWD vehicles: DD pistons for both front axle struts/shocks.
  • Fully service and rebuildable.
  • Revalvable for specific characteristics.
Specifications
  • Part Number: RIV-B1501S
  • Product: AST 5200 Series
  • Adjustment: 2 Way
  • System: Coil Over
  • Front/Rear Ratio: Front = 70% / Rear = 30%
  • Strut/Shock Type: Front: Uses OEM spindles / Rear: Eye 2 pin strut
  • Model Years: 1985-1991
  • Make: BMW
  • Model: 3 Series
  • Chassis: E30
  • Spring Kit: Included
  • Front Top Mounts: Included
  • Rear Top Mounts: Included
  • Adjustable Front Droplinks Available? No
  • Adjustable Front Droplinks Required? No
  • Adjustable Rear Droplinks Available? No
  • Adjustable Rear Droplinks Required? No
  • DDP Pistons Included? No
  • DDP Pistons Available? Yes
  • DLC Coated Shafts Included? No
  • DLC Coated Shafts Available? Yes
  • QDC Included? No
  • TUV Approved?
  • Comments: Original front hubs needed before start of production.
Vehicle Fitment
  • 1985 BMW 3 Series 325i (E30)
  • 1986 BMW 3 Series 325i (E30)
  • 1987 BMW 3 Series 325i (E30)
  • 1988 BMW 3 Series 325i (E30)
  • 1989 BMW 3 Series 325i (E30)
  • 1990 BMW 3 Series 325i (E30)
  • 1991 BMW 3 Series 325i (E30)
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