XYZ Racing Circuit Master Coilovers — Mercedes-Benz C CLASS W204 6 CYL (Modified Rear Integrated) 2007-2014

The six-cylinder W204 C-Class – C300, C350, and the AMG-flavoured cars that share its bones – carries noticeably more weight over the front axle than the four-pot versions, and that extra mass shows up as nose-dive under braking and a reluctant, slightly numb turn-in once the standard dampers start to give up. The XYZ Racing Circuit Master coilover kit for the Mercedes-Benz C-Class W204 (2007-2014) replaces that ageing setup with hardware built specifically for sustained circuit lap-time work rather than a single showcase lap.

This is XYZ’s top-tier circuit spec, aimed at drivers who want the car to behave the same way on lap fifteen as it did on lap one. On a chassis where the rear axle needs a modified, coilover-integrated mounting arrangement to accept this kind of damper in the first place, that kind of session-long consistency at both ends of the car is the whole point of the upgrade.

What this coilover kit does for your 2007-2014 Mercedes-Benz C-Class W204 6-cylinder

Independent adjustment across ride height, compression and rebound gives you 9,720 possible damping combinations, which in practice means you can firm up body control for a trackday and back it off again for the drive home without swapping parts. That range matters most on the W204’s heavier six-cylinder nose: reining in dive under braking without turning the ride brittle over motorway expansion joints is a genuine trade-off, and having that much adjustment either side of neutral is what makes it possible. At the rear, the modified integrated mounting keeps the coilover working with the C-Class’s factory multi-link geometry rather than fighting it, so the back axle stays planted through direction changes instead of stepping wide mid-corner. Lower, more consistent ride height also tightens up the C-Class’s factory roll characteristics, which is where most of the mid-corner vagueness in the standard setup comes from.

About the Circuit Master coilover

Circuit Master is XYZ Racing’s top-spec circuit damper, developed and tested with XYZ-affiliated racing teams across multiple race series rather than tuned solely on a road car. The headline figure is 9,720 external adjustment combinations, controlled through three separate knobs rather than a single combined dial, letting compression, rebound and preload be set independently instead of as a compromise. One quirk worth knowing about: the small oil-transfer passage inside the damper that enables this fine adjustment can produce a faint noise over larger bumps – that’s the design working as intended, not a fault, and it’s a non-issue on the smooth surfaces this damper is built for. Construction is aimed squarely at circuit driving, where the priority is holding a set damping curve through a full session rather than adapting on the fly to broken road surfaces.

Fitment for the Mercedes Benz C-Class W204 (2007-2014)

This kit is built for the W204-generation C-Class, six-cylinder variants, model years 2007 to 2014, and is identified in XYZ’s fitment system under chassis code ME06-1. The "modified rear integrated" designation means the rear damper mounting has been adapted to accept an integrated coilover in place of the C-Class’s factory separate spring-and-shock arrangement – confirm this is the correct rear configuration for your car before ordering.

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Circuit Master is built for owners who take their W204 seriously on track – configure yours below to match your car and your budget.