{"product_id":"ast-suspension-5100-series-1-way-coilovers-2001-2005-bmw-3-series-e46-sedan-touring-coupe-convertible-318i-318d-true-coilover","title":"AST Suspension 5100 Series Coilover Kit (Excludes Front\/Rear Top Mounts, True Coilover) - 1999-2007 BMW 3 Series 320d Sedan\/Touring\/Coupe\/Convertible RWD (E46)","description":"\u003cp\u003eThe 5100 Series shock absorbers for the 1999-2007 BMW 3 Series 320d Sedan\/Touring\/Coupe\/Convertible RWD (E46) utilize inverted \/ upside down technology. The inverted design is race proven technology and produces an extremely strong damper, providing better suspension geometry under heavy lateral and braking loads as seen in a road and track environment.\u003c\/p\u003e\u003cp\u003eThe 5100 Series shock absorbers give your car a better performance than the standard twin tube design. With the 5100 Series suspension you can adjust rebound with one knob. The adjust platform allows you to adjust the ride height of your car. AST suspension shock bodies are specially designed to keep maximum stroke, even with a lower ride height.\u003c\/p\u003e\u003ch3\u003eHow a Monotube design works?\u003c\/h3\u003e\u003cp\u003eMonotube design is essential for performance. The oil and nitrogen are separated by a floating piston, and allows the use of a larger piston, increasing the damper performance and sensitivity felt by the driver, all this added together produces more grip, gives more control and driver feedback from your vehicle.\u003c\/p\u003e\u003ch3\u003eWhat is a rebound adjustment?\u003c\/h3\u003e\u003cp\u003eRebound controls the rate of extension of your shock absorber. By changing the rebound you can directly change the characteristics of the vehicle.\u003c\/p\u003e\u003ch3\u003eStandard Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFloating piston design with high pressure nitrogen means no cavitation around the piston.\u003c\/li\u003e\n\u003cli\u003e14mm diameter internal shaft.\u003c\/li\u003e\n\u003cli\u003e44.5 mm diameter shaft struts, inverted.\u003c\/li\u003e\n\u003cli\u003eSteel cylinder body shocks, inverted.\u003c\/li\u003e\n\u003cli\u003eHigh end, track ready suspension.\u003c\/li\u003e\n\u003cli\u003eRebound adjustable ('Singles').\u003c\/li\u003e\n\u003cli\u003eLow friction seal.\u003c\/li\u003e\n\u003cli\u003eAdjuster knobs permanently mounted on the dampers.\u003c\/li\u003e\n\u003cli\u003eDesigned to use OEM top mounts.\u003c\/li\u003e\n\u003cli\u003eRubber bushings for 'eye' shock mounts.\u003c\/li\u003e\n\u003cli\u003eIncludes springs.\u003c\/li\u003e\n\u003cli\u003eRebuildable.\u003c\/li\u003e\n\u003cli\u003eOptional spherical top mounts.\u003c\/li\u003e\n\u003cli\u003eOptional DLC (diamond like carbon) coated shafts.\u003c\/li\u003e\n\u003cli\u003eOptional DDP (double digressive piston).\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eDouble Digressive Pistons are recommended for use on the non-driven wheels.\u003c\/li\u003e\n\u003cli\u003e4WD\/FWD vehicles: DD pistons for both rear axle struts\/shocks.\u003c\/li\u003e\n\u003cli\u003eRWD vehicles: DD pistons for both front axle struts\/shocks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eOptional custom valving.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eSpecifications\u003c\/h5\u003e\u003ctable class=\"table table-striped table-primary\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eACU-B1106S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Name\u003c\/td\u003e\n\u003ctd\u003e5100 Series Coilovers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle\u003c\/td\u003e\n\u003ctd\u003e1999-2007 BMW 3 Series 320d Sedan\/Touring\/Coupe\/Convertible RWD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Code\u003c\/td\u003e\n\u003ctd\u003eE46\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRide-Height Adjustable\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamping Adjustment\u003c\/td\u003e\n\u003ctd\u003e1-Way\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable Droplinks Available - Rear\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable Droplinks Required - Front\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable Droplinks Required - Rear\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDDP Pistons Available\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDDP Pistons Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDLC Coated Shafts Available\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDLC Coated Shafts Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional 1 Top Mounts - Front\u003c\/td\u003e\n\u003ctd\u003eTMA-B01-A2-20F - Camber Adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional 2 Top Mounts - Front \u003c\/td\u003e\n\u003ctd\u003eNot Available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Top Mounts - Rear\u003c\/td\u003e\n\u003ctd\u003eTMA-B01-B1-30R - Solid Top Mounts (no camber adjustment)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQDC Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRatio - Front\u003c\/td\u003e\n\u003ctd\u003e60%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRatio - Rear\u003c\/td\u003e\n\u003ctd\u003e40%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Strut\/Shock Type - Rear\u003c\/td\u003e\n\u003ctd\u003eEye 2 Pin Strut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Kit Include\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStrut\/Shock Type - Front\u003c\/td\u003e\n\u003ctd\u003eMcPherson Strut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003eFull Set (Front \u0026amp; Rear)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003ctd\u003eWorks with OE top mounts.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch5\u003eVehicle Fitment\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003e1999 BMW 3 Series 320d Sedan\/Touring\/Coupe\/Convertible RWD (E46)\u003c\/li\u003e\n\u003cli\u003e2000 BMW 3 Series 320d Sedan\/Touring\/Coupe\/Convertible RWD (E46)\u003c\/li\u003e\n\u003cli\u003e2001 BMW 3 Series 320d Sedan\/Touring\/Coupe\/Convertible RWD (E46)\u003c\/li\u003e\n\u003cli\u003e2002 BMW 3 Series 320d Sedan\/Touring\/Coupe\/Convertible RWD (E46)\u003c\/li\u003e\n\u003cli\u003e2003 BMW 3 Series 320d Sedan\/Touring\/Coupe\/Convertible RWD (E46)\u003c\/li\u003e\n\u003cli\u003e2004 BMW 3 Series 320d Sedan\/Touring\/Coupe\/Convertible RWD (E46)\u003c\/li\u003e\n\u003cli\u003e2005 BMW 3 Series 320d Sedan\/Touring\/Coupe\/Convertible RWD (E46)\u003c\/li\u003e\n\u003cli\u003e2006 BMW 3 Series 320d Sedan\/Touring\/Coupe\/Convertible RWD (E46)\u003c\/li\u003e\n\u003cli\u003e2007 BMW 3 Series 320d Sedan\/Touring\/Coupe\/Convertible RWD (E46)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AST Suspension","offers":[{"title":"Default Title","offer_id":40190286102588,"sku":"ACU-B1106S","price":3007.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0000\/2183\/products\/ast-suspension-5100-series-coilovers-excludes-front-rear-top-mounts-true-coilover-1999-2007-bmw-3-series-320d-sedan-touring-coupe-convertible-e46-acu-b1106s-1194452910.jpg?v=1768803820","url":"https:\/\/www.springrates.com\/products\/ast-suspension-5100-series-1-way-coilovers-2001-2005-bmw-3-series-e46-sedan-touring-coupe-convertible-318i-318d-true-coilover","provider":"SPRINGRATES","version":"1.0","type":"link"}