XYZ Racing Super Sport Coilovers — Alfa Romeo 155 Q4 TURBO 4WD Rear: Non-ride height adjustable 1992-1997

The 155 Q4 is the oddball in any Alfa lineage – a Lancia Delta Integrale running gear underneath a saloon body, with permanent 4WD and a turbocharged 2.0 sixteen-valve that wants to push the nose wide before it hooks up. Three decades on, the dampers that left Arese are tired, the rear is sagging on its tortured multi-link, and the Q4’s signature trait – that brief understeer-to-traction handoff as boost arrives – is now buried under worn-out bushes and collapsed struts. This XYZ Racing Super Sport coilover set is built specifically to bring that handoff back, with rear units designed for the Q4’s non-ride-height-adjustable rear architecture.

Super Sport sits in XYZ’s fast-road bracket: noticeably firmer than OEM, but tuned to be liveable on UK B-roads rather than punishing on broken tarmac. For a 155 Q4 owner who actually drives the car, that balance matters more than outright stiffness.

What this coilover does for your 1992-1997 Alfa Romeo 155 Q4 Turbo 4WD Rr: Non-ride Height Adjustable

Front ride height comes down to settle the nose over the heavy twin-cam turbo lump, which sharpens turn-in and reduces the lazy roll the Q4 develops as its factory springs age. The 30-step damping adjustment lets you run a softer setting for cross-country work, then wind compression up when you want the car to take a set on the way into a long third-gear corner. Body control through mid-corner load changes – exactly where the Q4’s 4WD system shuffles torque – becomes predictable again, so you stop guessing what the chassis is about to do. Brake dive shortens, the rear stops squatting under boost, and the car finally feels like the homologation special it was meant to be rather than a saggy old saloon.

About the Super Sport coilover

The Super Sport is a 30-way damper-adjustable monotube design with separate spring and damping tuning, which is how XYZ keeps fast-road compliance while still delivering meaningful body control. Front units are full coilover replacements with ride height adjustment via the lower mount, preserving spring preload. Rear units are matched to the Q4’s specific architecture – non-ride-height-adjustable at the back, reflecting the car’s rear suspension layout, with damper valving tuned to balance the firmer front. Spring rates are biased toward road use rather than circuit duty, sitting below the Racing Spec and Circuit Master rates in the XYZ range. Pillowball top mounts on the front allow precise camber input once the kit is on the car and corner-weighted.

Fitment for the Alfa Romeo 155 Q4 Turbo 4WD Rr: Non-ride Height Adjustable (1992-1997)

Built for the AL05 chassis 155 Q4 across the full 1992-1997 production run. The rear specification is non-ride-height-adjustable, matching the Q4’s factory rear suspension architecture – this is not a fault, it is correct for the car. Confirm your chassis code on the V5 before ordering, as standard 155 variants take a different kit.

What buyers also search for

• Alfa Romeo 155 Q4 suspension upgrade for fast road use
• 155 Q4 turbo coilover kit with damping adjustment
• AL05 chassis coilovers for the four-wheel-drive 155
• Replacement suspension for tired 1990s Alfa saloons
• Adjustable coilovers for the Delta Integrale-derived 155 Q4

Configure your spring rates and damping preference below to build the kit for your Q4.