BC Racing HM Series Coilovers for the 2015-2018 BMW F82 M3 & M4 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 F82 M3 & M4 chassis and refined until it balances ride quality with performance, the reason F82 M3 & M4 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, spring rates, and valving at checkout; BC will re-valve the dampers to match whatever you specify, a level of ization most brands reserve for their top-tier race kits.
BC Racing has been manufacturing adjustable coilovers since 2004 and is one of the most popular coilover brands in the automotive tuning industry for a reason: competitive pricing, deep ization, proven reliability, and a fully rebuildable damper design that lasts years instead of seasons. These F82 M3 & M4 coilovers arrive tuned for the F82 M3 & M4 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
Specifications
| Part Number | I-132-HM |
| Part Name | HM Series Coilovers |
| Vehicle | 2015-2018 BMW M3 |
| Drivetrain | RWD |
| Chassis Code | F80 |
| Damping Adjustment | 2-Way (30 levels rebound/30 levels compression) |
| Ride-Height Adjustable | Yes |
| Spring Rate – Front | 6 kg/mm |
| Spring Rate – Rear | 6 kg/mm |
| Top Mounts – Front | Camber Plates |
| Top Mounts – Rear | Pillowball Mounts (no camber adjustment) |
| Rear Damping Extenders | Not Compatible |
| Suspension Design – Front | True Coilover |
| Suspension Design – Rear | True Coilover |
| Notes |
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