XYZ Racing Tarmac Rally Coilovers — Infiniti M35 / M45 Y50 FUGA 2WD (Modified Rear Integrated) 2004-2009

The Y50-generation M35/M45, sold in Japan as the FUGA, puts a lot of car over its back axle: a 3.5 or 4.5-litre V8 up front, a long wheelbase, and kerb weight comfortably north of 1,800kg. On a rally stage’s broken tarmac that mass keeps loading and unloading the rear end over crests and compressions faster than a factory-tuned executive-saloon damper was ever designed to control. XYZ Racing’s Tarmac Rally coilover is built around exactly that problem – sealed-stage speeds over surfaces that are tarmac in name only, patched, cambered, and occasionally cratered.

This kit is set up for the 2WD driveline configuration, where every bit of road input arrives through the rear axle with nothing shared to a front differential. For a car built to run tarmac stages in this layout, the aim is to keep the rear tyres loaded and working rather than skipping across the surface between hits.

What this coilover does for your 2004-2009 Infiniti M35 / M45 Y50 FUGA 2WD (modified Rr Integrated)

Fitted to a Y50 M35/M45 running the 2WD, modified-rear-integrated layout, this coilover is there to keep the back of a heavy V8 saloon settled when the road surface stops behaving. It absorbs the impact of broken and uneven tarmac rather than transmitting it straight into the chassis, and it suppresses the body movement that follows a hard compression – the kind of hit that would otherwise unsettle a car this length mid-stage. Keeping the body still through that event is what keeps the rear tyres pressed into the road, which is where the traction actually comes from on a loose or patched stage surface. The net effect on a car of the Fuga’s size and weight distribution is a rear end that stays predictable under load transfer through fast direction changes, instead of stepping wide the moment the surface breaks up.

About the Tarmac Rally coilover

XYZ Racing built the Tarmac Rally line specifically for stage work on broken and uneven tarmac, not for the smoother, more consistent surface of a closed circuit. The damper is tuned to soak up the shock of large compressions and mid-corner bumps without passing that energy through to the body, and to hold the tyre against the road through the moment of impact so grip doesn’t drop out when it matters most. That combination of impact absorption and body control is what XYZ describes as giving the car vehicle stability – the platform stays settled enough for the driver to keep placing it accurately, hit after hit, rather than fighting it back onto line. The valving in this kit is drawn directly from XYZ’s own Tarmac Rally programme rather than adapted from a road or circuit base spec, which is why it behaves differently under a stage hit than a generic fast-road coilover would.

Fitment for the Infiniti M35 / M45 Y50 FUGA (2004-2009)

This kit is engineered for the Y50-chassis (IN08) Infiniti M35/M45, sold as the FUGA, across the 2004-2009 production run, specifically the 2WD variant with the modified rear integration required to mount the kit at the back axle. Confirm your car matches this 2WD driveline and the Y50 chassis code before ordering, as the front-drive-sharing 4WD Fuga variants are not covered by this listing.

What buyers also search for

• Infiniti M35 Y50 coilovers for tarmac rally and stage use
• Infiniti M45 FUGA suspension upgrade for broken and uneven road surfaces
• Y50 Fuga rear-axle damper setup for rally-spec stability
• Tarmac Rally coilover kit for a 2WD Infiniti M35/M45

Spec your Y50 M35/M45 Tarmac Rally kit against your exact build below and configure yours from there.