
XYZ Racing Super Sport Coilovers — Seat LEON MK1 (Modified Rear Integrated) 1999-2005
SKU: SE18A-SS
- IncludesFull set of 4 (front + rear)
- Spring rate (F/R)8 / 4 kg/mm
- Top mountFront: OE (factory) mount · Rear: Iron
- Lead time10–15 working days
Fits Seat LEON MK1 (Modified Rear Integrated) (1999-2005) chassis SE18A
Added to basket ✓

The MK1 Leon’s torsion-beam rear axle wasn’t built with adjustable damping in mind, which is exactly why this Rr Integrated Super Sport kit exists. On a chassis that spent its factory life absorbing UK B-roads rather than circuit kerbs, uncontrolled body movement over broken surfaces is the first thing to go once you push harder into a corner or load the car with a passenger and luggage. This kit addresses that directly, giving the rear end a properly located, height-adjustable damper instead of the compromise Seat shipped in 1999.
Super Sport sits below the outright track-day kits in the XYZ Racing range, and it’s built for fast-road driving with weekend track use rather than a car that lives on slicks. That positioning matters on a MK1 Leon still doing daily miles – you get the adjustability to sharpen the car for a track day without living with a harsh ride the rest of the week.
What this coilover does for your 1999-2005 Seat LEON MK1 (modified Rr Integrated)
The 36-way damping adjustment is the headline feature here, and on the MK1 Leon it lets you retune the rear axle’s response as conditions change – wind the compression up for a trackday session, back it off for the school run, without swapping parts. Ride height adjustment corrects the stance and centre of gravity that fifteen-plus-year-old factory springs have usually sagged out of shape, restoring the geometry the car was designed around rather than just lowering it for looks. Because the kit is specifically built for the Rr Integrated rear layout, it locates the axle properly instead of forcing a generic damper into a mounting point it wasn’t designed for – that fitment precision is what stops the rear end from feeling vague under trail braking or mid-corner load changes. Owners moving off worn-out factory struts will notice the biggest gain in body control over compressions and mid-corner bumps, exactly where the standard setup runs out of ideas.
About the Super Sport coilover
The Super Sport damper is built to remove the discomfort that comes from bumps and rough roads rather than simply stiffening everything up. It carries 36 stages of damping adjustment, so the rate can be set to suit the road surface and driving style in front of you rather than locking you into one compromise setting. Ride height is independently adjustable too, which means stance and geometry corrections don’t have to come at the cost of damping range. XYZ Racing pitches this tier at drivers who want a damper capable of handling a weekend on track without making the car unbearable as daily transport – a dual-purpose brief that suits a MK1 Leon still doing everyday duty. The construction is aimed squarely at that fast-road-plus-occasional-track use case, rather than a car built exclusively for one or the other.
Fitment for the Seat LEON MK1 (modified Rr Integrated) (1999-2005)
This kit is built for the Seat Leon MK1, chassis code SE18-A, across the full 1999 to 2005 production run, specifically for cars with the modified Rr Integrated rear end configuration. Confirm your Leon matches this rear axle spec before ordering, as the Rr Integrated design is not shared across every MK1 variant.
What buyers also search for
- Seat Leon MK1 suspension upgrade for road and track use
- Seat Leon MK1 Super Sport coilover damping adjustment for varying UK road conditions
- Seat Leon MK1 ride height adjustable coilovers for corrected stance and geometry
- Seat Leon MK1 Rr Integrated rear coilover fitment for SE18-A chassis
- Seat Leon MK1 coilover kit for daily driving with occasional track days
Pick your damping and height settings for the MK1 Leon’s rear-integrated setup and configure yours below.
Top mounts included with your kit
Every XYZ Racing coilover kit ships with the upper mounts listed below for your exact chassis — no extra parts to source.
Front
OE (factory) mountOERetains the OEM (factory) upper mount — preserves the original ride comfort, noise and vibration behaviour for a stock-like feel.
Rear
IronIRONIron upper mount — a heavy-duty housing built to take sustained load where a stronger top mount is required.
Other products that fit this vehicle
Coilover ranges, brake kits and wheels for this car
-
Top SportXYZ Racing Top Sport Coilovers — Seat LEON MK1 (Modified Rear Integrated) 1999-2005
£1,390.00 inc. VATView → -
Racing SpecXYZ Racing Racing Spec Coilovers — Seat LEON MK1 (Modified Rear Integrated) 1999-2005
£1,890.00 inc. VATView → -
Drag RacingXYZ Racing Drag Racing Coilovers — Seat LEON MK1 (Modified Rear Integrated) 1999-2005
£1,890.00 inc. VATView → -
Tarmac RallyXYZ Racing Tarmac Rally Coilovers — Seat LEON MK1 (Modified Rear Integrated) 1999-2005
£1,890.00 inc. VATView → -
Gravel RallyXYZ Racing Gravel Rally Coilovers — Seat LEON MK1 (Modified Rear Integrated) 1999-2005
£1,890.00 inc. VATView → -
Pro RallyXYZ Racing Pro Rally Coilovers — Seat LEON MK1 (Modified Rear Integrated) 1999-2005
£6,000.00 inc. VATView → -
Street AdvancedXYZ Racing Street Advanced Coilovers — Seat LEON MK1 (Modified Rear Integrated) 1999-2005
£2,190.00 inc. VATView → -
Circuit MasterXYZ Racing Circuit Master Coilovers — Seat LEON MK1 (Modified Rear Integrated) 1999-2005
£2,890.00 inc. VATView →