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Description

BMW F80/F82 M3/M4 3-bolt True Rear (14-20) BC Racing BR coilover kit 6/6 kg/mm

The BC Racing BR coilover kit M3 M4 F80 3-bolt True Rear (part number I-132-BR-RH) is a coilover kit adjustable in height and damping, also simply called a coilover, for the BMW M3 F80 and M4 F82 with front top mounts secured by 3 bolts, model years 2014 to 2020, in True Rear version. The spring rate is 6 kg/mm front and 6 kg/mm rear.

The BR series is BC Racing’s all-round coilover kit, for an M3 or M4 that is mainly driven on the road and does the occasional track day or autocross. Monotube dampers with a linear piston, 30-click damping adjustment and a ride height that you set independently of the spring preload make the kit widely usable.

In this True Rear version the rear also gets a complete strut, with the spring around the damper; on the standard BC Racing kits for the F80 and F82 (I-49 and I-68), spring and damper remain separate at the rear. This kit is for cars whose front top mount is secured with 3 bolts. For 5-bolt top mounts there is the I-133-BR-RH.

Key benefits

• True Rear: a complete strut at the rear as well, with the spring around the damper.
• For 3-bolt top mounts: fits the M3 F80 and M4 F82 whose front top mount is secured with 3 bolts.
• Pillowball top mounts front and rear: or camber plates, the same construction all round.
• Ride height independent of the spring preload: lower the M3 or M4 while the spring keeps its preload.
• 30-click damping adjustment: compression and rebound in a single action per damper.
• Monotube with linear piston: damping increases evenly with the speed of the wheel movement.
• Spring rate 6/6 kg/mm: 6 kg/mm front and 6 kg/mm rear.
• Patented concave lower lock ring: holds the set height.
• Rebuildable: the dampers can be rebuilt.

Suitable for

BMW M3 F80 Sedan and M4 F82 Coupe with rear-wheel drive, model years 2014 to 2020, with front top mounts secured to the strut tower with 3 bolts, in True Rear version. If the front top mounts are secured with 5 bolts, choose the I-133 kit. The M4 Convertible (F83) is not listed by BC Racing; please contact us for that version.

• Daily sporty driving with an M3 or M4
• The occasional track day or autocross
• Drivers who want a complete strut at the rear as well

Technical specifications

• Manufacturer: BC Racing
• Part number: I-132-BR-RH
• Series: BR, all-round for road and track
• Version: True Rear (integrated rear, a complete strut at the rear with the spring around the damper), for cars with front top mounts secured by 3 bolts
• Spring rate front/rear: 6/6 kg/mm
• Damper design: monotube with linear piston
• Damping: 30 clicks, compression and rebound simultaneously
• Ride height: adjustable via the damper body, independent of the spring preload
• Top mounts: pillowball top mounts or camber plates front and rear
• Contents: 4 struts with dampers and springs, lower mounts, top mounts where applicable, adjustment spanners and warranty card with serial number
• Warranty: 1 year on manufacturing defects

Fitting and delivery

The kit is vehicle-specific and replaces the original dampers and springs. We recommend having it fitted by an experienced mechanic. Please note: BC Racing specifies that the body shell must be reinforced before a True Rear kit is fitted. Before ordering, check whether the front top mounts of your car are secured with 3 or 5 bolts. After adjusting the ride height, have the wheel alignment set again, because camber and toe change as well. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If BC Racing is temporarily out of stock, you can still order and we will let you know the expected delivery date.

The BC Racing I-132-BR-RH is the True Rear BR kit for the BMW M3 F80 and M4 F82 with 3-bolt front top mounts, with 6/6 kg/mm springs and pillowball top mounts front and rear.

Why choose this BR coilover kit M3 M4 F80 3-bolt True Rear?

With True Rear the spring also sits around the damper at the rear, so your M3 or M4 is built the same way front and rear and you set the ride height all round via the damper body. The BR remains a kit for daily use: 30 clicks of linear damping that responds predictably, with room for a track day. Do bear in mind the reinforced body shell that BC Racing specifies before fitting.

BC Racing coilover kits for the BMW M3 F80 and M4 F82 True Rear with 3-bolt top mounts

Overview of the BC Racing series for the BMW M3 F80 and M4 F82 True Rear with 3-bolt top mounts supplied by Race4DriftParts, with the BC Racing part number. Spring rates in kg/mm, front/rear.

For the standard version of the BMW M3 F80 and M4 F82 without True Rear, BC Racing has separate kits. Their part numbers start with I-49 (3-bolt top mounts) and I-68 (5-bolt top mounts). The True Rear kits for 5-bolt top mounts start with I-133.

Frequently asked questions

Which BC Racing BR True Rear coilover kit do I need for my BMW M3 F80 or M4 F82: 3-bolt or 5-bolt?

If the front top mount is secured to the strut tower with 3 bolts, the BR coilover kit M3 M4 F80 3-bolt True Rear (I-132-BR-RH) is the right kit; with 5 bolts, choose the I-133-BR-RH. You count the bolts on top of the front strut towers under the bonnet. If in doubt, send us a photo or your chassis number and we will help you check.

Does the BC Racing BR True Rear coilover kit for the M3 F80 and M4 F82 also fit a BMW M4 Convertible F83?

That has not been confirmed. BC Racing lists this kit for the M3 F80 Sedan and M4 F82 Coupe with rear-wheel drive, model years 2014 to 2020, with 3-bolt front top mounts. If you drive an M4 Convertible (F83), please contact us before ordering.

What is the difference between the BC Racing BR and DS True Rear coilover kits for the BMW M3 F80 and M4 F82?

The BR has a linear piston for the road with the occasional track day, the DS a digressive piston that is more track-focused. The DS damps more firmly during slow body movements between 0 and 50 mm/s. Both kits have 6/6 kg/mm springs and pillowball top mounts front and rear.

Does the body shell need to be reinforced for the BC Racing BR True Rear coilover kit on the BMW M3 F80 or M4 F82?

Yes. BC Racing specifies that the body shell must be reinforced before a True Rear kit is fitted. Have an experienced mechanic assess this before the kit goes in.

What is the delivery time of the BC Racing BR True Rear coilover kit for the BMW M3 F80 and M4 F82?

The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If the kit is temporarily sold out, you can still order it and we will keep you informed of the delivery date.

Delivery outside the European Union: different shipping costs may apply. Don’t worry: we will email you as soon as possible after your order and agree the shipping with you. You are not committed to anything without your consent.