BC Racing ZX Series Coilovers for 2020+ Toyota Supra RWD (A90)
BC Racing ZX Series Coilovers for 2011-2019 BMW 1 Series RWD (F20) 3-Bolt Top Mounts
BC Racing ZX Series Coilovers for 2011-2019 BMW 1 Series RWD (F20) 3-Bolt Top Mounts
BC Racing ZX Series Coilovers for 2011-2019 BMW 1 Series RWD (F20) 3-Bolt Top Mounts
BC Racing ZX Series Coilovers for 2011-2019 BMW 1 Series RWD (F20) 3-Bolt Top Mounts
BC Racing ZX Series Coilovers for 2011-2019 BMW 1 Series RWD (F20) 3-Bolt Top Mounts

BC Racing

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SKU: I-37-ZX

BC Racing ZX Series Coilovers for 2011-2019 BMW 1 Series RWD (F20) 3-Bolt Top Mounts

Sale price$2,545.00Regular price $2,745.00
Out of Stock (about 4-6 weeks)

Fitment Notes

All suspension is designed to lower the vehicle. Factory ride height cannot be achieved for most applications.

All BC Racing suspension fits 2WD vehicles unless specified AWD. Notes regarding electronic damping (EDC, DDS, etc.) pertain to physical fitment only.

BC Racing coilovers DO NOT interface w/ OEM electronic damping control systems. Additional parts may be needed to remove error codes if electronics exist with the OEM suspension.

Pillowball Mounts do not mean Camber Plates. Pillowball refers to the type of bushing.

Product images may not represent the actual SKU.

Shipping Time

In-Stock: 1-3 business days
Products that are in-stock and do not require customization usually ship the same business day if ordered before 2pm ET. Orders placed after 2pm ET will ship the following business day. 

Out of Stock: 3-5 weeks
Products that are out of stock have an average lead time of 3-5 weeks.

Custom Builds: 3-5 weeks
Custom builds vary in time based on the options selected and available parts. Custom builds include any combination of the following options.

  • Extreme Low
  • DS/ER/RM/HM/ZR/ZX Series
  • Custom Spring Rates
  • Swift Springs
  • Top Mounts

Out of Stock (Swift Springs): 1-3 months
If Swift Springs are out of stock, the wait time can be about 1-3 months. Please ask for an ETA prior to ordering.

2-Year Warranty

BC Racing North America offers a two-year warranty against manufacturing defects. All warranty claims must be submitted directly to BC Racing North America.

More Details

Product Details

BC Racing ZX Series Coilovers for the 2011-2019 BMW 1 Series (RWD) bring the same three-axis adjustability as the race-spec ZR Series with valving tuned for drivers who split time between street and track. Every kit is extensively tested on the 1 Series RWD chassis and refined until it balances ride quality with performance — the reason 1 Series coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide.

ZX Series kits share the three-axis damper architecture of the race-spec ZR Series, tuned out of the box for drivers who want race-grade adjustability without the ride harshness on the commute home. The off-the-shelf setup from BC Racing is deliberately balanced — spring rates and valving chosen so the kit feels comfortable day-to-day without giving up performance when you push it. Drivers who want a different recipe can spec Swift Springs, custom spring rates, or fully custom valving at checkout; BC will tune the dampers to match, which is a depth of customization most brands only offer on their top-tier kits.

Since 2004, BC Racing has grown into one of the most trusted names in aftermarket coilovers — not by racing to the bottom on price, but by pairing that price with real build quality, deep customization options, and a damper design any suspension shop can rebuild instead of replacing. These 1 Series coilovers arrive tuned for the RWD chassis and ready to bolt in — no break-in period, no guessing at setup. Every kit ships with a 2-year manufacturer warranty, lifetime access to BC service parts (pistons, seals, shafts — no unit replacement required when it's time for a rebuild), and in-house tech support from both BC Racing and the Springrates team.

Features

  • 30-level rebound adjustment
  • 15-level low-speed compression adjustment
  • 12-level high-speed compression adjustment
  • Inverted mono-tube damper with linear twin-piston design
  • Ride height adjustable independent of spring preload
  • Upper mount hardware varies by chassis — camber plates, pillowball, or reused OEM mounts. See the Specifications table for what's included on your kit.
  • Swift Spring and custom spring rate upgrades available at checkout
  • Custom damper valving paired with custom spring rates on request
  • Fully rebuildable — replacement parts available from BC for the life of the shock
  • 2-year manufacturer warranty against defects
Specifications
Part Number I-37-ZX
Part Name ZX Series Coilovers
Vehicle 2011-2019 BMW 1 Series RWD (F20) 3-Bolt Top Mounts
Drivetrain RWD
Chassis Code RWD
Damping Adjustment 3-Way (30 levels rebound 15 LSC 12 HSC)
Ride-Height Adjustable Yes
Spring Rate - Front
Spring Rate - Rear
Camber Plates - Front Included
Camber Plates - Rear Not Applicable
Suspension Design - Front True Coilover
Suspension Design - Rear True Coilover
Notes
  • Fits RWD 3 Bolt Top Mounts only.
  • Vehicle has 3-bolt top mounts — verify before ordering.
  • The ZX Series is not available in Extreme-Low configuration.
  • Overseas market fitment (F20 Hatchback — not sold in U.S.). Verify against your local spec.
Vehicle Fitment
  • 2011 BMW 1 Series RWD (F20) 3-Bolt Top Mounts
  • 2012 BMW 1 Series RWD (F20) 3-Bolt Top Mounts
  • 2013 BMW 1 Series RWD (F20) 3-Bolt Top Mounts
  • 2014 BMW 1 Series RWD (F20) 3-Bolt Top Mounts
  • 2015 BMW 1 Series RWD (F20) 3-Bolt Top Mounts
  • 2016 BMW 1 Series RWD (F20) 3-Bolt Top Mounts
  • 2017 BMW 1 Series RWD (F20) 3-Bolt Top Mounts
  • 2018 BMW 1 Series RWD (F20) 3-Bolt Top Mounts
  • 2019 BMW 1 Series RWD (F20) 3-Bolt Top Mounts

Reviews / Q&A

FAQs

Please read our FAQs page to find out more.

How much will BC Coilovers lower my car?

On average, Standard Drop allows about 1-2 inches of drop range below factory ride height. Extreme Low allows about 2-3 inches of drop.

Can BC Coilovers achieve factory ride height?

No. In most cases, factory ride height cannot be achieved.

What is a custom build vs off-the-shelf kit?

The stock level displayed on our website reflects the availability of standard “off-the-shelf” kits, unless noted otherwise in the product description. Selecting any custom options—such as Extreme Low, custom spring rates, Swift Spring upgrades, or top mount changes—will result in a custom-built kit. Please note: all series except the BR Series are built to order, with the exception of select popular DS Series kits that may be in stock. Also, some popular Extreme Low kits are in stock as well. To identify these, look for "Extreme Low" in the product title.

Will the struts be valved correctly?

Yes! The shocks and/or struts are always valved to match the spring rates you choose during a custom build. There is no additional cost.

Can they be rebuilt?

Yes, all BC Racing Coilovers can be rebuilt by purchasing individual replacement parts. For example, if a strut leaks, you can simply replace the shock cartridge.

Is there rush shipping available?

Rush shipping is not offered, but all in-stock kits ship very fast— most by the next day.

Customizing the coilovers in any way will delay the shipment by a few weeks on average.

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