{"product_id":"ast-5100-coilovers-bmw-f80-m3-f82-m4","title":"AST 5100 Coilovers - BMW F80 M3\/F82 M4","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0616\/3388\/8514\/files\/AST_LOGOblack_160x160.png?v=1663057109\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0616\/3388\/8514\/files\/AST_LOGOblack_160x160.png?v=1663057109\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAST 5100 Series are\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003e1-way adjustable\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003ecoilovers that are\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003ecompatible with OEM top mounts\u003c\/strong\u003e, and a good\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eupgrade for your BMW F80 M3\/F82 M4 for \u003cstrong data-mce-fragment=\"1\"\u003efast road\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eand\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003etrack use\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eTechnical highlights include:\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1-Way adjustable (12 clicks of rebound adjustment)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eGas-pressurised, Monotube technology for improved handling and performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCompatible with OEM top mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eInverted strut design to cope with heavy cornering and braking loads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFully ride-height adjustable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAvailable with either rear true coilover or rear divorced spring setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePLEASE NOTE\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e - vehicles fitted with BMW Electronic Damper Control (EDC) will require a delete kit to prevent error codes from occurring.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003ch5 data-mce-fragment=\"1\"\u003eTrue coilover or divorced spring?\u003c\/h5\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0616\/3388\/8514\/files\/AST_LOGOblack_160x160.png?v=1663057109\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0616\/3388\/8514\/files\/AST_LOGOblack_160x160.png?v=1663057109\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIt is possible to spec some aftermarket coilovers with either a\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003etrue coilover\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eor\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003edivorced spring\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003esetup for the rear suspension. What do these mean and what are the benefits?\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eTrue coilover\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eA true coilover setup is where the rear spring and damper are a combined unit. The spring coil is pressed onto the shock, creating a traditional 'coil over'. This combined unit attaches to the rear top mount of the chassis.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe benefits of the true coilover setup are twofold. Firstly, as the damper and spring assemblies are in the same position, adjusting them is far easier. With a true coilover, adjusting both the ride heights and damper settings is much simpler than compared to a divorced spring setup. The second benefit is that the spring to damper ratio is far more closely related than compared to a divorced spring setup. A true coilover rear allows springs rates to be more accurately chosen and higher spring rates can be used without having to compensate for a more disparate spring to damper ratio.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThis makes true coilovers the ideal choice for intensive trackday applications or for drivers who want to get the most performance from their chassis.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eDivorced spring\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMany OEM manufacturers such as BMW use a divorced spring setup as standard. A divorced spring setup is where the damper is the sole point of connection between the rear wheel assembly and the chassis. The spring is 'divorced' from the spring and sits on a spring cup on the lower control arm in a spring perch.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThis setup is mainly chosen for ease of manufacture and simplicity. With an aftermarket coilover kit, a divorced spring setup is still a good choice for more fast-road oriented builds as longer travel damping can be achieved for more ride compliance.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe downsides of a divorced spring setup are that the ride height can be far harder to adjust using the adjustable spring perches, as opposed to ride height adjustment collars on a true coilover. A divorced spring setup means there is a greater variable between the spring and damper ratio due to the distance between the spring and wheels, as opposed to a true coilover setup. This difference ensures a divorced spring setup cannot match the ultimate performance of a true coilover setup.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eA divorced spring setup is more desirable on a fast road car.\u003c\/p\u003e","brand":"Suspension Secrets","offers":[{"title":"Default Title","offer_id":68095437504808,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5147\/0888\/files\/BMW_AST_5100_1_72c19cc2-944c-4072-b244-4858047aaf8a.png?v=1793824217","url":"https:\/\/iwujiperformance.com\/products\/ast-5100-coilovers-bmw-f80-m3-f82-m4","provider":"Iwuji Performance","version":"1.0","type":"link"}