Product Details
BC Racing HM Series Coilovers for the 2006-2011 BMW 3-Series E90 combine the inverted-damper durability of the RM Series with the independent compression and rebound tuning of the ER Series — BC's pick for track-day McPherson-strut builds. Every kit is extensively tested on the 3-Series E90 chassis and refined until it balances ride quality with performance — the reason 3-Series E90 coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide.
HM Series kits use an inverted mono-tube damper on McPherson-strut chassis (upright on double-wishbone) with external reservoirs feeding separate compression and rebound adjusters. The result: the tuning depth of the ER Series inside the heavy-load chassis architecture of the RM. BC Racing takes pride in choosing spring rates and damper valving that balance comfort and performance — you never end up with the oversprung, harsh-riding kit some brands ship as their only option. Drivers who want to deviate from the factory setup can order Swift Springs, custom spring rates, and custom valving at checkout; BC will re-valve the dampers to match whatever you specify, a level of customization most brands reserve for their top-tier race 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 3-Series E90 coilovers arrive tuned for the 3-Series E90 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 (top of damper)
- 30-level compression adjustment (external reservoir)
- Inverted mono-tube damper on McPherson-strut vehicles; upright on double-wishbone
- Combines RM Series inverted-damper architecture with ER Series 2-way adjustability
- 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-118-HM |
| Part Name | HM Series Coilovers |
| Vehicle | 2006-2011 BMW 3 Series RWD (E90/E92) |
| Drivetrain | RWD |
| Damping Adjustment | 2-Way (30 levels rebound / 30 levels compression) |
| 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 |
|
Vehicle Fitment
- 2006 BMW 3 Series RWD (E90/E92)
- 2007 BMW 3 Series RWD (E90/E92)
- 2008 BMW 3 Series RWD (E90/E92)
- 2009 BMW 3 Series RWD (E90/E92)
- 2010 BMW 3 Series RWD (E90/E92)
- 2011 BMW 3 Series RWD (E90/E92)