Our ready to install, out of the box coilover kits provide moderate drop and comfortable ride while still increasing roll resistance and overall handling. Our extra low kit gives approximately 20 to 25mm more drop than our standard kit, and sometimes (but not always) includes stiffer spring rates.

To order an Extra Low kit, you can usually find these in the drop down menus on the selected vehicle, if you do not see this please contact us via phone, chat or email ([email protected]) to discuss further, we will then check viability and add this to the website.

One thing that sets BC Racing apart from our competitors is that we offer custom options with our kits. When spring rates are changed we also valve the damper to match the spring rate. For Extra Low we use shorter springs, shorter dampers, or both depending on the build.

Custom springs rates should only be used when you have already experimented with our standard spring rates or if your build requires stiffer spring rates for other reasons such as; certain track conditions, other supporting mods, or aggressive wheel setup in order to minimize rubbing.

Yes, all BC Racing coilover kits come with 4 coilovers, one for each corner of the car. Not all BC Racing coilover kits come with top mounts so some kits will require the use of OEM top mounts. Additionally some vehicles use OEM leaf springs in rear, we do not convert these to coil springs, you will be able to see this when kits spring rate shows, for example 6/X, this denotes 6kg/mm front spring and no spring in rear

Generally, you can go up 2kg, or down 2kg in spring rate. Exceeding 2kg in variation requires a damper valving change. We always recommend you contact us with your serial number, via phone, chat or email ([email protected]) to discuss before changing your spring rates

Our standard kits are approximately 25mm below OEM ride height at max high, and approximately 60-75mm below OEM ride height at max low. Extra Low kits are approximately 50mm below OEM ride height at max high, and are approximately 100mm below OEM ride height at max low, depending on the specific vehicle.

Custom rates should only be used in very specific circumstances, such as track-only vehicles with significantly different weight distribution, cars running very large low–treadwear tires, situations where a specific handling characteristic needs to be added or reduced, or applications requiring extremely tight fender-to-lip fitment.

BC Racing coilover kits are spec’d out of the box for a moderate drop, and just above mid-range damping. These are good all around settings, but are completely adjustable by the end user to support his or her end goal. Pre-load is already set out of the box.

The highest spring rates available will vary depending on the vehicle. Please contact our sales department with your chassis code via phone, chat or email ([email protected]) to discuss.

When ordering an E36, E46, Z3, or Z4 kit please make sure to determine whether you have on-centre or off-centre top plates before ordering. We make kits for both on-centre and off-centre top plate vehicles. We also offer camber/caster plates for many of the vehicles that use off-centre top plates. If you are still unsure please contact us via phone, chat or email ([email protected]) to discuss.

Some vehicles (for example, E30, Q45, 240Z/260Z/280Z) require welding of the lower mount to the knuckle because the OEM design is one unit. We include instructions but a professional must perform installation. Always make sure to remove the damper from bottom mount before welding.

Generally, BC Racing default recommended kits use 15-20% stiffer springs and 20-30% stiffer damper valving than OEM suspension. The reason for this is our suspension units are shorter, this allow for the lowering capability as well as a broad adjustment range.

Lock rings, top nuts, spanner wrenches etc. vary from kit to kit depending on the vehicle. To ensure the right size/spec for your chassis, please contact us via phone, chat or email ([email protected]) to discuss.

End links are generally required when the sway bar mounts to the shock body. The sway bar mounting tab is generally much lower than the OEM mounting tab which requires the use of a shorter end-link. We include end-links in all kits that require them. If we do not include them they are not necessary and you can continue to use OEM.

Custom kits require a 2-3 week lead-time to be built. We are the leader in custom coilover kits and have a very fast turn around time compared to other coilover companies.

We highly suggest an alignment after initial installation or major height adjustment, as changes in ride height will affect your alignment. We recommend you get an alignment after roughly one week of daily driving the vehicle. Failure to do so will result in increased tire wear.

Corner balancing is a great way to dial in your car’s suspension and get the most out of your coilovers but it is not necessary. Corner balancing is really only useful for drivers who plan on heavily tracking their vehicle or are installing coilovers on a fully gutted and caged race car, it is not necessary for a daily driver or show car. Corner balancing can result in uneven ride height.

BC Racing coilovers are designed with track use in mind. Our default recommended kits are tuned for a happy medium between street and track, but can be customized for heavy track use on a track-prepped vehicle.

In stock kits generally ship within 24 hours, out of stock kits require a 2-3 week lead time.