XYZ Racing Tarmac Rally Coilovers — Chrysler 300C 2011-2026

The Chrysler 300C is a 1,900kg rear-drive saloon with a long wheelbase, a high roll centre and a chassis that was never intended to attack a crested sealed stage at competition pace. The Tarmac Rally coilover from XYZ Racing exists to make that car possible – a damper engineered to absorb broken Welsh tarmac, kerb hits and mid-corner ruts without giving up the body control needed to hustle a heavy LX-platform saloon between hedges.

This is a niche kit for a niche use case. If you are building a 300C – likely a 5.7 HEMI or a 3.0 CRD – for closed-road tarmac rallies, historic stages or sprint events on broken surfaces, this is the spec that the Top Sport circuit-focused kit cannot deliver.

What this coilover does for your 2011-2026 Chrysler 300C

The 300C carries serious mass over the nose and rolls onto its outside front tyre harder than most saloons of its size. The Tarmac Rally damper is valved to soak up a sudden mid-corner compression – the sort of hit that pitches a stock 300C into understeer and unloads the inside rear – and recover before the next input. You feel it as a car that stays composed when the road surface stops cooperating, which on a UK stage rally is most of the time.

Traction is the other gain. By suppressing body shock rather than transmitting it through the spring, the damper keeps the rear tyres planted under power out of slow corners, where a heavy rear-drive saloon will otherwise step wide on a bumpy exit. The result is a 300C that puts its torque down on surfaces that would have it scrabbling on the standard suspension.

About the Tarmac Rally coilover

XYZ Racing developed this damper specifically for tarmac rally use, and the valving carries across settings refined on stage. The construction is built around absorbing impact – large bumps, mid-corner compressions, kerb strikes – while still controlling the body of a heavy saloon between those hits. Where a circuit damper prioritises platform stiffness, this one prioritises compliance over insult, then recovers.

The brief is narrower than a Super Sport or Top Sport coilover. You are not buying a kit that splits its time between B-roads and Brands Hatch. You are buying suspension that has been tuned by a rally programme, for cars being driven flat-out across surfaces that punish stiff dampers. On a 300C, that translates to a saloon you can actually commit to on a broken stage road.

Fitment for the Chrysler 300C (2011-2026)

This kit fits the second-generation Chrysler 300C, chassis code CR03, across the full 2011-2026 production run. Both V6 petrol and 3.0 V6 CRD diesel variants share the underlying LX2 platform geometry that this coilover is built around. The 5.7 HEMI and SRT8 6.4 cars sit on the same hardpoints.

What buyers also search for

• Chrysler 300C tarmac rally suspension for sealed-stage events
• Chrysler 300C coilover kit for broken-surface tarmac and historic rallies
• Heavy saloon rally suspension that absorbs mid-corner bumps without losing body control
• Chrysler 300C CR03 rear-drive rally damper setup for HEMI and CRD cars
• XYZ Racing tarmac rally valving for UK closed-road and sprint use

Spec the damper, spring rate and ride height for your 300C build below.