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The spring rates on the standard H-04-BR kit are 7kg front/6kg rear. The extreme low version of the H-04-BR uses 8kg front/6kg rear. This kit can be fully customized with different spring rates should you need something different than the rates listed.
Thank you for contacting us. This kit fits the BK3P Mazda 3 chassis.
Below is a link to the correct set of spanner wrenches: https://www.nexternal.com/bcracing/spanner-wrenches-p5749.aspx
The front shock on the BMW E46 BR Series kit is 53mm. All 3 lock rings, lower mount locking ring, lower spring seat and spring seat locking ring are all 53mm on the front shock.
A small number of very early production Mazda/Mazdaspeed 3's came with a rear lower shock bolt that featured an added washer which was previously not included.
Below is the link for your spanner wrenches: https://www.nexternal.com/bcracing/bmw-5-series-e39-spanner-wrenches-p5537.aspx
These spanner wrenches are made specifically for our 53mm OD shock body locking rings. They're made for our M53 lower spring seat, lower spring seat lower ring, and lower mount locking ring.
The Swift Spring upgrade on the T-01-BR kit would use the same spring rates as the BC Racing springs 7kg/5kg unless other rates were specified. The length of the Swift Springs for the T-01-BR kit would be 152mm front and rear.
All locking rings are sold as a single piece. If you need multiple rings then you can select a quantity of more than 1 when adding them to your cart.
The I-20-BR kit will replace your OEM air ride. The only modification that needs to be made is that the rear airbag will need to be removed prior to installing the coilovers.
The standard F-07-BR kit will lower the Outback ~1.5-2.5" below OEM height. An Extreme Low version of the F-07-BR kit is available and will allow for a ~2-3.5" drop. If you're needing something more custom, that is also available.
Your Evo 8 uses the SA02-1001 camber bearing housing.
The standard D-28-BR kit will lower the car ~1"-3" below OEM height front and rear. They will not raise the car above OEM ride height. If you need something more aggressive, this kit can be built in extreme low configuration which will give you another inch of drop.
The D-28-BR kit is a complete performance suspension replacement for your OEM suspension and no additional parts are required. The D-28-BR kit comes standard with 7kg/7kg spring rates and the rear spring is variable diameter (not linear).
The standard rear damping extensions are the ones you'll need for the F-25-BR kit. Here is a link where they can be purchased.
A rear half kit can definitely be ordered. Half kits are considered a custom build and require a 2-3 week lead time for delivery. Please contact our sales department for pricing and availability and they'll be glad to assist you. [email protected] or 321-206-6381
You may reach us at 321-206-6381. Please select Option 2 for the Tech Department. Our Tech Team will be happy to assist you.
The standard BC Racing BR Series kit for the E90/E92 M3 will drop the car ~3" front and rear. However, a custom extreme low kit can be built if you're needing something more aggressive.
Aloha! Your kit (F-02-BR) utilizes spanner wrenches SG12-0001/0002. Please let us know if you have any additional questions.
The BC Racing I-23-BR Series kit will give you ~1.5-3.5" of drop front and rear. If you're looking for something that will allow you to go lower than this kit can be built in Extreme Low configuration with custom spring rates.