BC RACING COILOVERS HM SERIES - BMW 3 SERIES E46 CONVERTIBLE (98-06) Manufacturer-Dyno The Recommended spring rate provides

The Recommended spring rate provides a strong baseline for mixed use

the Stage 3 keeps the comfort and smooth shifts during normal driving

The STG3 Airtec intercooler is ideal for cars running lots of hardware and is going to be used hard on the track or fast road

and driving styles

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BC RACING COILOVERS HM SERIES - BMW 3 SERIES E46 CONVERTIBLE (98-06) Manufacturer-Dyno The Recommended spring rate providesThe BC Racing HM Series builds on the capabilities of the RM range but adds fully independent 2 way damping adjustment for serious track use. Each HM kit features inverted monotube dampers with separate compression and rebound control, giving drivers the ability to fine tune handling balance with far greater precision. The inverted damper design relocates critical damper fluid and internal components away from heat sources such as brakes and hubs.