
BC Racing DS Series Coilovers for 2007-2013 BMW E90/E92 M3 (w/o EDC)
by BC Racing
Key Features
- Proprietary digressive piston mono-tube design for superior low-speed damping control
- 30 levels of simultaneous compression and rebound adjustment for precise tuning
- Height adjustment via shock body preserves full damper stroke at all ride heights
- Pillowball mounts sharpen steering response and eliminate suspension compliance
- Factory-matched spring rates: 8kg/mm front, 6kg/mm rear for E90/E92 M3
- Fully rebuildable with all replacement parts available; backed by one-year warranty
Product Details
- Brand
- BC Racing
- Part #
- I-39-DS
- Category
- Coilovers
- ASIN
- B07LGGGK2Z
Check if it fits your BMW
BC Racing DS Series Coilovers for 2007-2013 BMW E90/E92 M3 (w/o EDC) — Overview
The BC Racing DS Series represents a meaningful step up from BC's popular BR Series, built specifically for drivers who want more than just a lower ride height. The defining feature is BC Racing's proprietary digressive piston design housed in a mono-tube shock body — a configuration that generates significantly higher damping force at low piston velocities, where body roll, nose dive, pitch, and weight transfer are most felt. At higher piston velocities, the damping curve stays linear and predictable, keeping the car composed without harshness. It's a sophisticated balance that separates serious performance coilovers from budget drop kits.
Fitment is specific to 2007–2013 BMW E90 and E92 M3 models without Electronic Damper Control (EDC), sold under part number I-39-DS. Spring rates are dialed in at 8kg/mm front and 6kg/mm rear — firm enough for track use but streetable with the right damper setting. The satin chrome finished shock bodies adjust ride height without sacrificing damper stroke, solving one of the most common trade-offs in coilover design. Pillowball upper mounts replace the factory rubber isolators, tightening up steering feedback and removing the dead feeling that dulls the M3's naturally sharp chassis.
With 30 levels of simultaneous compression and rebound adjustment, the DS Series gives you real tuning flexibility whether you're dialing in a setup for a track day at Watkins Glen or settling into a comfortable street tune for daily driving. Each click is a meaningful, noticeable change — not a vague incremental tweak. The fully rebuildable construction means this is a long-term investment in your M3's performance, with replacement parts and rebuild services available through BC Racing's established support network, all backed by a one-year warranty.
Other Coilovers
Recommended for Your BMW

maXpeedingrods Adjustable Front Sway Bar End Links — E36/E46/E9x
maXpeedingrods

Whiteline KLC140-255 Heavy Duty Sway Bar Link Assembly
Whiteline

Megan Racing Front Upper Strut Bar (Polished) — E82/E88/E90/E92/E93
BFC

maXpeedingrods Aluminum Strut Tower Brace — E90/E92/E93 3 Series
maXpeedingrods



