{"product_id":"tein-12-18-subaru-forester-2-0xt-sjg-street-advance-z4-coilovers","title":"Tein 12-18 Subaru Forester 2.0XT (SJG) Street Advance Z4 Coilovers","description":"\u003cp\u003eSTREET ADVANCE Z4 has threading type ride height adjustment system.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe ride height can be adjusted by moving the lower spring seat up or down. Its simple structure allows for easier handling.\u003cbr data-mce-fragment=\"1\"\u003eStandard ride height for STREET ADVANCE Z4 is set at 1 inch (approx. 25mm) higher than the original, to accommodate various driving scenes from streets to off-roading.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eSTREET ADVANCE Z4 is designed and configured to be most suitable for the lifted height. Simply raising the standard height can lead to insufficient rebound stroke impairing the stability and also make the camber angle positive on strut suspensions.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eSTREET ADVANCE Z4 is tested on each vehicle models to optimize the dimensions and settings, in order to secure sufficient strokes and to enable the best suited alignment. \u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eSealed Structure:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA New Formula and a New Structure!\u003c\/li\u003e\n\u003cli\u003eMaking an Incredibly Low Price a Reality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAbout the Sealed Structure\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe top end of the shell pipe is narrowed, oil and gas are injected, and the whole unit is sealed by crimping the metal.\u003cbr data-mce-fragment=\"1\"\u003eThis new approach massively shortens the production process. As a result, we have succeeded in vastly cutting production cost.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eTwin-Tube System;\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eCompared to the regular mono-tube system, twin-tube attains longer stroke with a smaller repulsive force, resulting in high ride comfort.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eRoads may have all sorts of surface conditions. This calls for shock absorbers with ample stroke, that operate smoothly.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThanks to this unique characteristic, you can negotiate gaps and bumps steadily on rough roads, meaning a smooth ride at low speed and stability at high speed.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eHydraulic Bump Stop (H.B.S.):\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eMore comfort and higher durability at maximum passenger and cargo load.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eHow the H.B.S. Mechanism Works\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eWhen regular shock absorbers fully stroke, their bump rubbers are compressed. The energy that is generated by that escapes as a repulsive force, which can disturb the vehicle's behavior. Furthermore, repeated full strokes can damage the damper.\u003cbr data-mce-fragment=\"1\"\u003eIn the same situation, FLEX AVS, featuring H.B.S., internally converts the impact of the stroke to thermal energy (heat) and absorbs it, strongly reducing the impact that disturbs the vehicle's behavior. With less damage to the dampers, H.B.S. also contributes to their durability.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eThe Hydraulic Bump Stopper (H.B.S.) Mechanism\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eIn shock absorbers with inactive or no H.B.S., the operative valve (green) floats, and oil flows freely through the base valve ports. Resistance to the flow from the shim stack then, causes damping force.\u003cbr data-mce-fragment=\"1\"\u003eNear full compression, when the piston rod strokes beyond a predetermined point, the operative valve is pushed down and activates H.B.S.: the base valve ports are narrowed, blocking the oil flow. This results in high damping force.\u003cbr data-mce-fragment=\"1\"\u003eA relief valve serves to suppress sudden damping force increase, when the pressure in the cylinder exceeds its regular level.br\u003cbr data-mce-fragment=\"1\"\u003eThe setup of the H.B.S. mechanism is optimized per vehicle model, with the right activation point and damping force.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eUses OE Mounts:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eSTREET ADVANCE Z4 uses the vehicle's original upper mounts (not included in our product kit).\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eHigh Durability and Reliability:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptimal Dust Boot\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eThanks to its smooth compression and high durability, the dust boot guards the piston rod from damage, and keeps foreign material out of the shock absorber. (Some vehicles use their OE dust boots)\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eNo-Sag Spring\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eCold formed with SAE9254 steel (minimum tensile strength 200 kgf\/mm2), our springs are outstandingly sag-proof and boast extreme resiliency.\u003cbr data-mce-fragment=\"1\"\u003eSuperior rust protection is ensured with a highly durable powder coating that does not peel or flake. Our high-quality springs can be used without worries, in any conditions.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eHigh-Performance Damper Oil\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eSince TEIN's damper oil maintains a stable viscosity in a broad temperature range, it sustains smooth stroke and reliable damping force in a variety of circumstances.\u003cbr data-mce-fragment=\"1\"\u003eDue to excellent anti-foaming properties, it's resistant to cavitation (bubble forming). Since it withstands high heat too, it's suitable for intense sport driving as well.\u003cbr data-mce-fragment=\"1\"\u003eFurthermore, the damper oil keeps up its superior performance long-term, because it's resistant to deterioration over time.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eRust-Proofing\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eTEIN-Green Powder Coating\u003cbr data-mce-fragment=\"1\"\u003eA bright TEIN-green powder paint is used on the shock absorber's shell case. Our powder coating technique produces an extremely strong and durable barrier. No harmful organic solvents are used, for minimal pollution.\u003cbr data-mce-fragment=\"1\"\u003eSuperior durability and corrosion resistance are achieved by TEIN's patented 2-Layer, 1-Bake powder coating method, which uses 2 layers of anti-rust paint on a blasted surface. (Japanese patent number 4347712)\u003cbr data-mce-fragment=\"1\"\u003eSpecial Surface Treatment 'ZT Coating\u003cbr data-mce-fragment=\"1\"\u003eOur unique ZT Coating surface treatment on the ride height adjustment thread is abrasion resistant against gravel\/debris, and further enhances its corrosion resistance.\u003cbr data-mce-fragment=\"1\"\u003eWith zero claims for stuck parts due to rust in 500,000 shock absorbers, TEIN shock absorbers are amazingly rustproof. We're confident of customer satisfaction even in coastal areas or regions with heavy snowfall.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eDamping Force Adjustment:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eSTREET ADVANCE Z4 features 16-level damping force adjustment, for simultaneous adjustment of compression and rebound.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eModify ride comfort and handling according to your preference, changing the properties of the shock absorber with the adjustment dial.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eCompatible with EDFC Series (Optional):\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe EDFC Series offer easy damping force adjustment from the driver's seat.*\u003c\/p\u003e\n\u003cp\u003eSome vehicle models are not compatible\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA motor instead of adjustment dial\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEDFC Active Pro\u003c\/li\u003e\n\u003cli\u003eEDFC Active\u003c\/li\u003e\n\u003cli\u003eEDFC II\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tein","offers":[{"title":"Default Title","offer_id":39406253539427,"sku":"VSSA2-G1SS2","price":2188.64,"currency_code":"NZD","in_stock":true}],"url":"https:\/\/www.speedscience.co.nz\/products\/tein-12-18-subaru-forester-2-0xt-sjg-street-advance-z4-coilovers","provider":"Speed Science","version":"1.0","type":"link"}