Mazda COSMO 13B/20B ROTARY 1990-1996 — Coilovers

The Eunos Cosmo left the factory tuned for the autobahn, not the apex. Mazda built its rotary flagship to waft – soft springs, long damper travel and a kerb weight north of 1,500kg that the standard setup never really contained through a quick direction change. A set of XYZ Racing coilovers for the 1990-1996 Mazda Cosmo 13B/20B Rotary is how you reclaim body control without throwing away the grand-touring manners the car was bought for.

It is a height-adjustable, damper-adjustable platform that replaces three-decade-old factory struts long past their best. On the sequential twin-turbo 13B-RE or the three-rotor 20B-REW alike, the kit lets you set ride height and corner balance to suit a heavy, front-engined rear-driver.

What this coilover kit does for your 1990-1996 Mazda Cosmo 13B/20B Rotary

Drop the Cosmo onto adjustable coilovers and the first thing you notice is what stops happening: the nose-heavy dive every time you brake from speed, and the slow lean the soft factory springs allowed mid-corner. Firmer, height-adjustable spring and damper rates pull the heavy front end down and keep the body flatter, so the chassis settles instead of floating over crests and compressions. The damping adjustment lets you choose where the car lives, plush enough for a long motorway run or tighter for a spirited B-road. Lowering the centre of gravity sharpens turn-in on a car that, from the factory, always felt a beat behind your hands. And on a 30-year-old GT, fresh dampers alone transform how composed the Cosmo feels over poor surfaces.

About the XYZ Racing coilover range

Every XYZ Racing coilover is built around a height-adjustable threaded body with independent ride-height and damping control, so spring preload and stance are set separately rather than fighting each other. For the Cosmo, the range spans nine specifications. Street Advanced and Super Sport sit at the fast-road end, prioritising a usable ride alongside far better body control than standard. Top Sport and Circuit Master move towards harder track use, with Racing Spec firmer still. The Drift Spec, Tarmac Rally, Gravel Rally and Pro Rally builds exist for owners chasing a specific discipline, each carrying its own spring rate and valving philosophy. Damping is adjustable across the range, letting you tune compression and rebound to the Cosmo’s weight and your roads. The point is choice: one chassis, a spec to match a weekend cruiser or something far sharper.

Fitment for the Mazda Cosmo 13B/20B Rotary (1990-1996)

This kit is built for the Mazda Cosmo, chassis code MA20, across the full 1990 to 1996 production run. It fits both rotary powertrains the car was sold with, the sequential twin-turbo 13B-RE and the three-rotor 20B-REW, as the suspension hardware is common to both. Check your year and chassis code below before ordering.

What buyers also search for

• Mazda Cosmo coilover upgrade for fast road and the occasional track day
• 13B-RE and 20B-REW suspension replacement for tired, original factory dampers
• Mazda Cosmo ride height adjustment to bring a heavy GT down to a lower stance
• Adjustable damping that balances comfort and body control on a 1,500kg rotary coupe
• Eunos Cosmo handling upgrade that keeps the car’s grand-touring character intact

Pick the spec that matches how you actually use your Cosmo, cruiser, fast road or full track, and configure yours below.