{"product_id":"dinan-performance-spring-set-bmw-g20-330i-m340i-g22-m440i","title":"Dinan Performance Spring Set - BMW G20 330i \/ M340i \/ G22 M440i xDrive (2019-2026)","description":"\u003cp\u003eThe G20 and G22 are great daily drivers straight from the factory. But look at one from the side and you see the wheel gap, and push one through a highway on-ramp and you feel the extra roll and squat. You want it tighter and lower without turning your commute into a punishment.\u003c\/p\u003e\n\u003cp\u003eThe Dinan Performance Spring Set does it the right way: one spring set for the BMW G20 330i, G20 M340i and G22 M440i xDrive, with rates and drops engineered separately for each model and drivetrain. No generic one-size drop. Each car gets the spring its weight and layout actually need.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy the Dinan Performance Spring Set Is Tuned Per Model\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA 330i with a four-cylinder and an M340i xDrive with a six and all-wheel drive sit very differently on their stock springs. Dinan set the drop and rate for each one. That means a firmer, flatter car with less squat on launch and less dive under braking, scaled to what your model started with, not a harsh, over-sprung ride.\u003c\/p\u003e\n\u003cp\u003eEvery spring is CNC wound from high-tensile chrome silicon wire, shot-peened for stress relief, and preset so it will not sag over time. They work with both conventional shocks and BMW's factory electronic adaptive shocks, so M Sport adaptive cars keep full drive mode control.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDinan Performance Spring Set Specs by Model\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e330i RWD: 1-1\/8\" lower front, 3\/4\" lower rear. 7-95% stiffer front, 34-92% stiffer rear\u003c\/li\u003e\n  \u003cli\u003e330i xDrive: 5\/8\" lower front, 3\/4\" lower rear. 7-95% stiffer front, 34-92% stiffer rear\u003c\/li\u003e\n  \u003cli\u003eM340i RWD: 1\" lower front and rear. 15% stiffer front and rear\u003c\/li\u003e\n  \u003cli\u003eM340i xDrive: 1\" lower front and rear. Front rate essentially unchanged, 10% stiffer rear\u003c\/li\u003e\n  \u003cli\u003eM440i xDrive: 1-1\/8\" lower front, 5\/8\" lower rear. Front rate essentially unchanged, 23% stiffer rear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor the best ride at the lower height, pair these springs with the Dinan Supplemental Ride Quality and Handling Kit, sold separately. Dinan's ride and handling warranty coverage assumes that kit is installed. Dinan part number D100-0934. Sold by AutoTecknic, an authorized Dinan dealer.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFront and rear Dinan performance springs for your specific model and drivetrain\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDrop and spring rate engineered separately for each model and drivetrain\u003c\/li\u003e\n  \u003cli\u003eUp to 1-1\/8\" lower depending on model\u003c\/li\u003e\n  \u003cli\u003eLess body roll, rear squat and front dive\u003c\/li\u003e\n  \u003cli\u003eCNC wound high-tensile chrome silicon wire, shot-peened for stress relief\u003c\/li\u003e\n  \u003cli\u003ePreset to prevent sagging\u003c\/li\u003e\n  \u003cli\u003eCompatible with conventional and factory electronic adaptive shocks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFits the following BMW models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBMW 330i \/ G20 Sedan (2019-2026): RWD and xDrive\u003c\/li\u003e\n  \u003cli\u003eBMW M340i \/ G20 Sedan (2020-2026): RWD and xDrive\u003c\/li\u003e\n  \u003cli\u003eBMW M440i xDrive \/ G22 Coupe (2021-2026): xDrive only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDoes not fit the M440i RWD, 330e, 430i, 4 Series Convertible (G23) or 4 Series Gran Coupe (G26).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDinan quotes 8.4 hours of labor. This job needs a lift and a spring compressor, so professional installation is recommended. A four-wheel alignment is required after lowering.\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003eRaise and support the car and remove the wheels.\u003c\/li\u003e\n  \u003cli\u003eRemove the front strut assemblies, compress the springs, and swap in the Dinan front springs on the factory struts.\u003c\/li\u003e\n  \u003cli\u003eUnload the rear suspension and replace the rear springs with the Dinan rear springs.\u003c\/li\u003e\n  \u003cli\u003eReinstall everything, torque to factory spec, and let the suspension settle.\u003c\/li\u003e\n  \u003cli\u003eComplete a four-wheel alignment at the new ride height.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Dinan","offers":[{"title":"Default Title","offer_id":51268684447990,"sku":"DNND100-0934","price":313.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2674\/6278\/files\/61f758e87bab1a1ccf70151e3ea6ec4bL.jpg?v=1784709285","url":"https:\/\/autotecknic.com\/products\/dinan-performance-spring-set-bmw-g20-330i-m340i-g22-m440i","provider":"AutoTecknic USA","version":"1.0","type":"link"}