Fitment Information BMW 325i RWD | Sedan (2006, 2007, 2008) BMW 328i RWD | Sedan (2006, 2007, 2008, 2009, 2010, 2011)  BMW 330i RWD | Sedan  (2006, 2007, 2008)  BMW 335d RWD | Sedan (2009, 2010, 2011)  BMW 335i RWD | Sedan (2007, 2008, 2009, 2010, 2011)  NOTE: Any BC Racing kit modification such as custom spring rate, upgrading to swift springs or that is not regularly stocked as an extreme low kit will require an additional $150 invoiced to you by our orders team after you place your order.  Specs & Features   30 levels of dampening adjustable. Spring Rates: 7K front and 12kg rear. Front Camber Plates: Yes BR Series - Single Adjustable Linear Coilovers 1 Year Warranty when purchased through Redline360 (Authorized Dealer) Fully Rebuildable Linear Piston and Damping Curve Mono-tube shock design Includes a full set of 4 coilovers Genuine BC Racing coilovers Optional Swift Spring Upgrade All springs are not created equal. The diameters and spring rates may be similar but the process of manufacturing springs plays an enormous factor in how springs perform. Swift springs are manufactured using superior engineering and have moved quickly through the ranks of motorsports and some of the world's most reputable races. Swift's impressive motorsports history dates back to 1998 with the Nissan Skyline GT-R in the Super Taikyu Endurance championship series in Japan, then championship teams in Le Mans 24hrs, Nurburgring 24hrs, Super GT (JGTC), Super Taikyu series, D-1 World Grand Prix, F3, F3000, Formula Toyota, and many other world class races. Swift springs are the lightest in weight, strongest in durability, and highest in linearity of any spring on the market. Cold wound Thinner wire diameter with fewer coils Lightest magnetic metal springs available on the market Swift Metric Coilover springs feature the highest linearity of any spring Wide stroke range More linear usable stroke range than other springs on the market Limited lifetime warranty against spring sag Industry leading spring response Superior spring compression speed Responds more quickly over undulating road surfaces Tires have less tendency to skip Improved traction Decreased tire temperatures Product Description   The ultimate street coilover!  BC Racing has been known amongst performance enthusiasts to manufacture one of the best coilovers on the market.  There is almost no equal to the level of performance, adjustability and ride quality you receive from BC Racing Coilovers.  BC Racing makes it easy to replace your factory suspension with a full performance coilover system by including everything you need in a comprehensive kit.  These coilovers come with an adjustment knob that makes it easy for you to set the coilover dampening to your specific needs and adjust compression and rebound together.  You can also adjust how low you want the vehicle by adjusting the shock body, as opposed to cheaper kits that make you compress the spring in order to lower the vehicle.  The benefit of lowering the vehicle with the coilover shock body vs spring compression is that you do not lose suspension travel and do not force your vehicle to have a worse ride because you adjusted your coilovers very low.  Redline360 is an authorized BC Racing dealer.  BC Racing honors your warranty when purchasing your BC Racing Coilovers from Redline360.