{"product_id":"st-x-coilovers-audi-tt-8n-98-07","title":"ST X Coilovers Audi TT 8N 98-07","description":"\u003ch2\u003eST X Coilovers for Audi TT 8N (1998-2007) – 20-50 mm Lower, Height Adjustable, Fixed Damping\u003c\/h2\u003e\n\u003cp\u003eThis ST X kit replaces the standard springs and dampers on the Audi TT 8N (1998-2007) with a height-adjustable coilover set. It lowers the car by approx. 20-50 mm front and rear, which sharpens the steering, cuts body roll and closes up the wheel arch gap. The ride height is set on threaded struts, so you can go for a subtle drop or use the full approved range, and change it again later.\u003c\/p\u003e\n\u003cp\u003eThe ST X is the entry point to the ST range. It is built around a damper setting that ST have matched to this specific car, so there is nothing to adjust beyond ride height. Shaped (progressive) springs keep the ride compliant over small bumps and firm up as the suspension compresses, which makes it a good fit for a daily driver that needs to look lower and feel tighter without becoming harsh. ST is part of the KW automotive group, and the kit is developed and made in Germany using KW engineering.\u003c\/p\u003e\n\u003cp\u003eST makes 3 versions of the X kit for the Audi TT 8N, split by drivetrain and front axle weight. Between them they cover the 1.8 T, 1.8 T quattro, 3.2 VR6 quattro. Use the table in the Fitment section to find the right one, then choose it from the drop-down.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront lowering:\u003c\/strong\u003e approx. 20-50 mm (varies by version)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear lowering:\u003c\/strong\u003e approx. 20-50 mm (varies by version)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight adjustment:\u003c\/strong\u003e Stepless, on threaded strut housings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum ride height (wheel hub centre to arch edge):\u003c\/strong\u003e front 320-355 mm, rear 335-355 mm (varies by version)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamping:\u003c\/strong\u003e Fixed, pre-set by ST for this vehicle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSprings:\u003c\/strong\u003e Shaped progressive springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrut housings:\u003c\/strong\u003e Galvanised steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproval:\u003c\/strong\u003e Parts certificate (German §19.3)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLowering figures are ST's, measured against the standard car. The actual drop varies with engine, equipment and tolerances on each car, and the springs settle slightly after the first few hundred miles.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStepless ride height adjustment on a coarse, dirt-resistant trapezoidal thread\u003c\/li\u003e\n\u003cli\u003eDamper setting developed by ST for this vehicle, so no setup is needed beyond ride height\u003c\/li\u003e\n\u003cli\u003eShaped progressive springs for a comfortable ride with firmer support in corners\u003c\/li\u003e\n\u003cli\u003eGalvanised, multi-sealed steel strut housings for long-term corrosion protection\u003c\/li\u003e\n\u003cli\u003eComposite spring perches with stainless steel inserts that stay easy to adjust for years\u003c\/li\u003e\n\u003cli\u003eDust covers and bump stops protect the damper seals and act as an extra spring under heavy load\u003c\/li\u003e\n\u003cli\u003eDeveloped and built in Germany, based on KW engineering\u003c\/li\u003e\n\u003cli\u003eSupplied with a parts certificate and fitting instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's in the Kit?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2 x height-adjustable front coilover struts with springs\u003c\/li\u003e\n\u003cli\u003e2 x rear dampers\u003c\/li\u003e\n\u003cli\u003e2 x rear springs with height-adjustable spring seats\u003c\/li\u003e\n\u003cli\u003eComposite spring perches with stainless steel inserts\u003c\/li\u003e\n\u003cli\u003eDust covers and bump stops\u003c\/li\u003e\n\u003cli\u003eParts certificate and fitting instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e the photos are ST's own images of the kits for this car. Choose your version to see its kit. Small details such as brackets can differ from the photos.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi TT 8N (Oct 1998 to Feb 2007)\u003c\/li\u003e\n\u003cli\u003eAudi TT Roadster 8N (Oct 1999 to Feb 2007)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhich version do I need?\u003c\/strong\u003e Find your engine, then match the body style, drivetrain and front axle load. The axle load is on your VIN plate (door pillar or under the bonnet, the line marked \"1-\"). Not sure? Send us your registration and we will check.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eVersion\u003c\/th\u003e\n\u003cth\u003eEngines\u003c\/th\u003e\n\u003cth\u003eMax axle load F \/ R\u003c\/th\u003e\n\u003cth\u003eLowering F \/ R\u003c\/th\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2WD (only for cars with ESP (electronic stability programme))\u003c\/td\u003e\n\u003ctd\u003e1.8 T 110-140kW\u003c\/td\u003e\n\u003ctd\u003e1030 kg \/ 845 kg\u003c\/td\u003e\n\u003ctd\u003e20-45 mm \/ 20-45 mm\u003c\/td\u003e\n\u003ctd\u003e13210005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4WD (only for cars with ESP (electronic stability programme))\u003c\/td\u003e\n\u003ctd\u003e1.8 T quattro 132-180kW\u003c\/td\u003e\n\u003ctd\u003e1040 kg \/ 900 kg\u003c\/td\u003e\n\u003ctd\u003e25-50 mm \/ 25-50 mm\u003c\/td\u003e\n\u003ctd\u003e13210041\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4WD 6-Cyl (only for cars with ESP (electronic stability programme))\u003c\/td\u003e\n\u003ctd\u003e3.2 VR6 quattro 184kW\u003c\/td\u003e\n\u003ctd\u003e1110 kg \/ 920 kg\u003c\/td\u003e\n\u003ctd\u003e25-50 mm \/ 25-50 mm\u003c\/td\u003e\n\u003ctd\u003e13280081\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e Cars without ESP. Also not for other generations or body styles, which need their own kit, such as \u003ca href=\"\/products\/st-x-coilovers-audi-tt-8j-06-15\"\u003eST X Coilovers Audi TT 8J 06-15\u003c\/a\u003e, \u003ca href=\"\/products\/st-x-coilovers-audi-tt-rs-8j-09-15\"\u003eST X Coilovers Audi TT RS 8J 09-15\u003c\/a\u003e, \u003ca href=\"\/products\/st-x-coilovers-audi-tt-8s-14-23\"\u003eST X Coilovers Audi TT 8S 14-23\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eFitting means removing the original struts, springs and dampers and fitting the ST units in their place. We recommend a qualified workshop experienced with coilovers. A spring compressor is needed to strip down the original front struts. The original top mounts, bearings and fixings are reused, so check them for wear and replace any that are worn. Set the ride height within the approved range, tighten the suspension bolts with the car's weight on its wheels, and torque everything to the manufacturer's figures. A four-wheel alignment is required once the car is at its final ride height. Re-check the height and alignment after the first few hundred miles, once the springs have settled.\u003c\/p\u003e\n\u003cp\u003eThe fitting instructions and parts certificate for each version can be downloaded from its specification table once you choose your version.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBefore you start:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWith the factory wheels and tyres, wheel spacers may be needed to give enough clearance to the coilovers.\u003c\/li\u003e\n\u003cli\u003eOn cars with a driveshaft diameter of 50mm or more, KW recommend their anti-roll bar kit (part no. 68550008) to improve clearance to the right-hand driveshaft. Clearance can vary from car to car, so check it after fitting.\u003c\/li\u003e\n\u003cli\u003eAt the maximum approved lowering, the anti-roll bar must be changed to keep clearance to the right-hand driveshaft: KW kit 68550000 for cars without xenon headlights, or 68550005 for cars with xenon headlights.\u003c\/li\u003e\n\u003cli\u003eOn the original wheel sizes, wheel spacers may be needed to keep enough clearance.\u003c\/li\u003e\n\u003cli\u003eDo not shorten the original bump stops.\u003c\/li\u003e\n\u003cli\u003eDisconnect any ride height sensors (headlight levelling or self-levelling) before removing the old struts.\u003c\/li\u003e\n\u003cli\u003eClean the threads before adjusting, and start with the height adjusters in the middle of their range.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAfter fitting:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDo not go below ST's minimum height, measured from the wheel hub centre to the wheel arch edge: front 320-355 mm, rear 335-355 mm (see the spec table for your version).\u003c\/li\u003e\n\u003cli\u003eExpect the car to settle a further 5-10 mm once it has been driven, then re-check the height.\u003c\/li\u003e\n\u003cli\u003eCheck there is at least 5 mm clearance between the tyres and the suspension through the full steering and suspension travel.\u003c\/li\u003e\n\u003cli\u003eHave the headlight aim reset, along with any other height-dependent systems.\u003c\/li\u003e\n\u003cli\u003eESP\/ABS warning lights can appear after fitting. Some clear after a short drive, others need full steering lock both ways or a reset with a diagnostic tool.\u003c\/li\u003e\n\u003cli\u003eOn cars with radar or camera driver assistance systems, have the calibration checked after lowering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eWant to fine-tune the ride? The \u003ca href=\"\/products\/st-xa-coilovers-audi-tt-8n-98-07\"\u003eST XA Coilovers Audi TT 8N 98-07\u003c\/a\u003e adds 16-click rebound adjustment.\u003c\/p\u003e\n\u003cp\u003eFor track days, the \u003ca href=\"\/products\/st-xta-coilovers-audi-tt-8n-98-07\"\u003eST XTA Coilovers Audi TT 8N 98-07\u003c\/a\u003e adds camber-adjustable top mounts and a race spring system.\u003c\/p\u003e\n\u003ch3\u003eWhich version do I need for my Audi TT 8N?\u003c\/h3\u003e\n\u003cp\u003eStart with your engine in the Fitment table, then match the body style, drivetrain and front axle load (on your VIN plate). If more than one row fits, or your car isn't listed, send us your registration and we will confirm the right part number.\u003c\/p\u003e\n\u003ch3\u003eWill this fit my Audi TT 8N?\u003c\/h3\u003e\n\u003cp\u003eIt fits the Audi TT 8N (1998-2007) with the 1.8 T, 1.8 T quattro, 3.2 VR6 quattro. Check the Fitment section for the body styles and exclusions, or send us your registration and we will check.\u003c\/p\u003e\n\u003ch3\u003eHow low will my Audi TT 8N sit?\u003c\/h3\u003e\n\u003cp\u003eST quotes a drop of approx. 20-50 mm front and rear compared with standard, depending on the version. The exact drop varies from car to car with engine, equipment and tolerances. ST also sets a minimum: the distance from the wheel hub centre to the wheel arch edge must stay above approx. 320-355 mm at the front and 335-355 mm at the rear.\u003c\/p\u003e\n\u003ch3\u003eCan I adjust the damping?\u003c\/h3\u003e\n\u003cp\u003eNo, the damping is pre-set by ST to suit the springs, so there is nothing to set up. You only adjust the ride height. If you want adjustable damping, look at the ST XA.\u003c\/p\u003e\n\u003ch3\u003eWill the ST X make my Audi TT 8N ride harshly?\u003c\/h3\u003e\n\u003cp\u003eThe ST X uses progressive springs and a fixed damper setting chosen by ST for this car, so it is firmer than standard but still suits everyday driving. Lowering a long way or fitting low-profile tyres will firm up the ride more than the coilovers themselves.\u003c\/p\u003e\n\u003ch3\u003eDo I need an alignment after fitting?\u003c\/h3\u003e\n\u003cp\u003eYes. Changing the ride height changes camber and toe, so a full four-wheel alignment is needed once the car is at its final height, and again after any later change.\u003c\/p\u003e\n\u003ch3\u003eWill my standard wheels fit?\u003c\/h3\u003e\n\u003cp\u003eOn the original wheel sizes, ST says wheel spacers may be needed to keep enough clearance. Aftermarket wheels should be checked for clearance at your chosen ride height.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal in the UK?\u003c\/h3\u003e\n\u003cp\u003eYes. It is designed for road use and comes with a German parts certificate. Keep the ride height within ST's approved range and tell your insurer about the modification.\u003c\/p\u003e\n\u003ch3\u003eIs it covered by a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes, ST covers it against defects in materials and workmanship. If a part ever needs replacing, contact us with your vehicle details and order number.\u003c\/p\u003e","brand":"ST Suspensions","offers":[{"title":"2WD, Front Axle up to 1030kg","offer_id":58920056160639,"sku":"ST-13210005-1","price":788.5,"currency_code":"GBP","in_stock":true},{"title":"4WD, Front Axle up to 1040kg","offer_id":58920056193407,"sku":"ST-13210041","price":788.5,"currency_code":"GBP","in_stock":true},{"title":"4WD 6-Cyl, Front Axle up to 1110kg","offer_id":58920056226175,"sku":"ST-13280081","price":788.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6251\/6693\/files\/ST-13210005_001-1000_c93519b8-9b50-43f1-b9e7-137e72effe18.jpg?v=1792769774","url":"https:\/\/coilovers.co.uk\/products\/st-x-coilovers-audi-tt-8n-98-07","provider":"Coilovers.co.uk","version":"1.0","type":"link"}