BC Racing RM Series Coilover System (2003 - 2008 Subaru Forester SG) - F-12-RM
Inverted Coilover Performance for the SG Forester
Give your 2003 - 2008 Subaru Forester SG a major suspension upgrade with the BC Racing RM Series Coilover System. Purpose-built for MacPherson-style strut platforms, the RM Series uses a premium inverted mono-tube damper design that relocates the damper's heavy mass toward the chassis. This dramatically reduces unsprung weight, sharpens suspension response, and improves overall chassis feedback - ideal for SG Forester owners who want better handling without sacrificing durability.
Because the SG chassis uses MacPherson struts, the RM Series provides inverted dampers in the front and either inverted or upright dampers in the rear depending on configuration. The system also uses a reinforced inverted piston shaft engineered to withstand high lateral loads - perfect for spirited driving, lifted adventure builds, autocross setups, or aggressive street use. With broad adjustability and rebuildable construction, the RM Series is built to last.
Performance Highlights
- Inverted mono-tube damper design reduces unsprung weight and increases rigidity.
- Large inverted piston shaft improves durability under extended lateral load conditions.
- Linear damping curve ensures smooth, predictable handling characteristics.
- 30-way compression/rebound adjustment allows precise tuning for comfort or performance.
- Independent ride height adjustment maintains proper damper stroke at any height.
- Front camber plates standard on applicable SG kits for improved alignment control.
- Rear camber plates available where chassis compatibility allows.
- Custom spring rates and Swift Spring upgrades offered for specialized setups.
- Fully rebuildable with a 1-year manufacturer defect warranty.
Quick Specs
- Brand: BC Racing
- Series: RM Series
- Part Number: F-12-RM
- Vehicle Fitment: 2003 - 2008 Subaru Forester SG
- Damper Style: Inverted mono-tube (rear may use upright damper depending on configuration)
- Damping Adjustment: 30-way simultaneous compression/rebound
- Height Adjustment: Independent of spring preload
- Default Spring Rates: Front 5.5kg/mm | Rear 3.2kg/mm
- Camber Plates: Front included; rear available where applicable
- Warranty: 1 Year (Manufacturer Defect)
- Rebuildable: Yes
Why Choose the BC Racing RM Series?
If you're looking to improve the SG Forester's stability, cornering response, and chassis feel, the RM Series is the ideal choice. Its inverted design offers stronger load resistance, reduced unsprung weight, and enhanced durability - a major benefit for high-speed cornering or rough-terrain driving. With wide-range damping control and independent ride height adjustment, the RM Series adapts easily to daily driving, lifted builds, and serious performance applications.
FAQs
How does the RM Series compare to BR or DS coilovers?
The RM Series uses an inverted mono-tube damper, offering higher rigidity and reduced unsprung weight - benefits not found in the BR or DS Series.
Is the RM Series good for daily driving?
Yes. With 30 damping levels, you can achieve a comfortable street ride or a firmer, more performance-focused setup.
Do these coilovers come with camber plates?
Front camber plates are included where applicable, and rear camber plates are available depending on SG chassis compatibility.
Can I request custom spring rates?
Absolutely. BC Racing offers custom spring rates and Swift Spring upgrades for precise performance tuning.
Fitment
- 2003 Subaru Forester SG
- 2004 Subaru Forester SG
- 2005 Subaru Forester SG
- 2006 Subaru Forester SG
- 2007 Subaru Forester SG
- 2008 Subaru Forester SG
Why Buy from Beefcake Racing?
Beefcake Racing is your trusted authorized BC Racing dealer, offering competitive pricing, fast shipping, and expert suspension guidance. Whether your SG Forester is a daily commuter, lifted adventure rig, or sporty backroad machine, we'll help you dial in the ideal coilover setup. Contact our team at sales@beefcakeracing.com or call 1-855-827-7223. Beefcake Racing - Performance Starts Here.
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