BC Racing ZR-Series Coilovers BMW M3 E46 00-06

BC Racing ZR-Series Coilovers for BMW M3 E46 (2000-2006) – Height and Damping Adjustable, Corner Weight Adjustable

These BC Racing ZR-Series coilovers replace the standard dampers and springs on the BMW M3 E46 (2000-2006) with a fully adjustable setup. You can set the ride height, damping and corner weights to suit the car, making them ideal for track and motorsport use.

The ZR-Series is a 3-way adjustable system with independent high-speed compression, low-speed compression and rebound adjustment. On strut cars it uses inverted monotube dampers with Teflon-coated braided lines to external reservoirs that can be remotely mounted in the engine bay or boot.

Ride height is set by winding the bottom mount up or down the damper body rather than moving the spring, so full damper travel is kept whatever height you run. The lower spring platform also adjusts, so the car can be corner weighted for even tyre loading across each axle.

Specifications

• Spring rates: 8/12kg/mm (F/R)
• Damping: 3 way damping adjustable
• Front: External reservoir - includes pillowball top mount
• Rear: External reservoir - includes pillowball top mount
• Camber adjustment: Front camber adjustment, front camber/castor plate
• Kit weight: 23kg

Key Features

• 3-way adjustable damping: rebound, low-speed and high-speed compression
• External reservoirs with Teflon-coated braided lines (inverted strut applications)
• Dual piston design (one in the reservoir, one in the damper)
• Fully rebuildable monotube dampers
• Ride height adjustable independently of spring preload and damper travel
• Adjustable lower spring platform for corner weighting
• Patented concave lower locking collar

What's in the Kit?

• 2 x front coilovers with springs (external reservoir - includes pillowball top mount)
• 2 x rear dampers and springs (external reservoir - includes pillowball top mount)

Fitment

• BMW M3 E46 00-06 (RWD)
• BMW M3 E46 Coupe 00-06 (Offset)
• BMW M3 E46 00-06 (RWD)

Not suitable for: other BMW M3 E46 variants with a different drive layout, strut diameter or rear suspension type. Please check your chassis code and drive type against the fitment above before ordering.

Installation

The coilovers replace the standard dampers and springs and bolt in to the original mounting points. Set the ride height and spring preload before final tightening, let the suspension settle, then recheck the height and have a four-wheel alignment carried out. We recommend professional fitting.

Upgrade Further

Other BC Racing options for this car: BC Racing BR-Series Coilovers BMW M3 E46 00-06 RWD 6/9kg Offset TMs; BC Racing DS-Series Coilovers BMW M3 E46 00-06 RWD 6/9kg; BC Racing ER-Series Coilovers BMW M3 E46 00-06. Keep a spare BC Racing C-spanner for adjusting the height and spring platforms.

Can I adjust the ride height?

Yes. Ride height is set by moving the bottom mount on the damper body, so you keep full damper travel at any height you choose.

How is the damping adjusted?

The ZR-Series uses 3-way adjustment: rebound, low-speed compression and high-speed compression. Start from BC's base setting and adjust front and rear in small steps to suit the road or track.

Are these suitable for daily driving?

They can be used on the road, but the ZR-Series is designed mainly for track and motorsport use. For a car that is mostly driven on the road, our V1 or BR-Series kits are a better fit.

Can I get different spring rates?

The kit comes with 8/12kg/mm (F/R) springs as standard. If you need different rates, contact us before ordering and we will check what is available.

Will pillowball top mounts be noisier?

Pillowball mounts are solid, so they transfer a little more noise and vibration than rubber mounts. In return they remove flex and sharpen steering response.

Do I need a wheel alignment after fitting?

Yes. Changing the ride height alters the suspension geometry, so a four-wheel alignment should be carried out once the car has settled.

Does it fit other models?

Yes, BC lists this kit as also fitting: BMW M3 E46 Coupe 00-06 (Offset), BMW M3 E46 00-06 (RWD).

What warranty is included?

BC Racing products are covered against defects in materials and workmanship. Contact us if you have any problem with your kit.