Opel KADETT C 1973-1979 — Coilovers

The Kadett C carries its mass high over a live rear axle and simple MacPherson front struts, which is exactly why half a century of rally and circuit builders have chased a better damper for it. This XYZ Racing coilover range for the 1973-1979 Opel Kadett C replaces the soft, long-travel factory setup with height and damping adjustable struts suited to how these cars are actually used in 2026 – historic stages, hillclimbs, track days and fast road.

Pick the spec to match the job. Super Sport and Street Advanced lean toward usable fast-road manners; Top Sport, Racing Spec and Circuit Master sharpen the car for sealed-surface competition; Tarmac Rally and Gravel Rally cover stage work by surface; Drift Spec aims at lock and recovery. Each runs the same adjustable platform, set up for the Kadett C’s OP04 chassis.

What these coilovers do for your 1973-1979 Opel Kadett C

Lower and control a Kadett C and the changes are immediate. Dropping the ride height pulls the centre of gravity down on a tall, narrow body, cutting the roll and dive the standard soft springs allow under hard cornering and braking. Adjustable damping lets you firm the front struts so the nose stops washing wide on turn-in, while keeping enough compliance for the live rear axle to put power down out of slow corners. Because these are coilovers rather than a fixed lowering spring, you set the corner heights to trim the Kadett’s natural mid-corner attitude and load the outside front the way you want it. On a roughly 800kg car, small rate and height changes translate into clear, feelable shifts in balance.

About the XYZ Racing coilover range

XYZ Racing builds this range as a true coilover: a threaded body that separates ride-height adjustment from spring preload, so the car can sit low without harsh, coil-bound springs. The street and fast-road specs prioritise a settled, compliant ride; the competition and rally specs step up spring rates and damping control for repeated hard use. Rally variants are split by surface, Tarmac Rally for sealed stages and Gravel Rally for loose, reflecting the very different travel and rate needs of each. Drift Spec favours steering angle and quick weight transfer, while Circuit Master and Racing Spec target sustained circuit and competition loads. Across all eight specs the brief is consistent: give a 1973-1979 Kadett C owner one adjustable platform that can be configured for their event rather than a single lowering kit.

Fitment for the Opel Kadett C (1973-1979)

This kit is catalogued for the Opel Kadett C, chassis code OP04, across the full 1973 to 1979 production run. It is the rear-drive C-series Kadett, so confirm your car matches that generation before ordering. The exact damping and height specification is then chosen from the configurator.

What buyers also search for

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Compare the eight specs against how you actually run your Kadett C, then configure yours below.