XYZ Racing Tarmac Rally Coilovers — Chevrolet CORVETTE C5/C6 (Cancellation Kit for Electronic Damping) 1997-2013

The C5 and C6 Corvette were built around a transverse composite leaf-spring rear and an electronically managed damper system that ties the car’s ride and handling to a closed control unit. Strip that system out for stage use and you need a coilover that gives you back full mechanical control – which is what the XYZ Racing Tarmac Rally kit, supplied with the cancellation harness for the factory Magnetic Selective Ride Control electronics, is built to do.

For tarmac rally work in a front-engine, rear-drive Corvette – where the LS pulls hard out of hairpins and the rear axle has to put 350-plus lb-ft down on broken stage surface – damper behaviour over mid-corner bumps is the difference between a clean exit and a tank-slapper. This kit is set up from XYZ’s own Tarmac Rally programme rather than transplanted from a circuit spec.

What this coilover does for your 1997-2013 Chevrolet Corvette C5/C6

The Corvette’s long wheelbase and rearward weight bias reward a damper that can soak a mid-corner ridge without unloading the inside rear. The Tarmac Rally valving is built specifically to absorb sharp, repeated impacts from broken sealed surface – kerb strikes, ripple, patched tarmac – while keeping the contact patch planted, which matters on a car that will gladly step the rear out the moment a tyre skips. With the electronic damping cancellation harness included, the OE Magnetic Ride control unit is bypassed cleanly, so you get the full mechanical adjustment range without throwing dash faults. The result on stage is a Corvette that turns in cleanly off the brakes, takes a kerb without crashing through the suspension, and holds attitude on the throttle.

About the Tarmac Rally coilover

The Tarmac Rally is XYZ Racing’s sealed-stage rally specification, valved to absorb the impact of uneven pavement and suppress body movement over big hits while keeping tyre traction high. The damping is set up from XYZ’s own tarmac rally racing experience rather than adapted from a circuit programme, so the bias is toward compliance over sharp bumps and stability when the chassis is loaded asymmetrically through compressions. Construction is built to take repeat stage abuse, and the valving prioritises the low-to-mid-speed shaft control that defines how a car behaves over real-world rally surface rather than ironed-out track. For the C5/C6 specifically, the kit ships with the cancellation harness needed to retire the factory electronic damping system, so the coilover operates as a fully mechanical, fully adjustable unit.

Fitment for the Chevrolet CORVETTE C5/C6 (Cancellation Kit for Electronic Damping) (1997-2013)

This kit fits Corvette C5 (1997-2004) and C6 (2005-2013) chassis code CH08-C and includes the cancellation kit required for cars originally fitted with Magnetic Selective Ride Control electronic damping. Confirm your car was specified with the electronic damper system before ordering this variant – non-MRC cars take a different harness configuration.

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Spec the damping, spring rate and ride height for your stage programme – configure yours below.