{"product_id":"ohlins-bmw-f80-f82-f87-200-n-mm-rear-straight-spring-m2-m2-competition-m3-m4","title":"Genuine Ohlins 200 N\/mm (200N\/mm) Rear Linear Coilover\/Coil Spring - BMW F8x F80 F82 F83 F87 M2\/M2C M3 M4 - Road \u0026 Track R\u0026T Rear Suspension Straight Spring Upgrade","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \n  \u003ch2\u003eBMW F8x M-car Rear Linear Spring 200 N\/mm — Part No. 48170-37\u003c\/h2\u003e\n  \n  \u003cp\u003e\n    Looking to sharpen the rear end of your BMW M car for fast road and track use? This authentic Öhlins 200 N\/mm rear straight spring, part number \u003cstrong\u003e48170-37\u003c\/strong\u003e, is a superb rear axle upgrade for the F80 M3, F82 and F83 M4, and F87 M2 including M2 Competition. It is a direct match for Öhlins R\u0026amp;T coilover kits and is ideal when replacing a tired spring, fine-tuning spring rates or tailoring balance for circuit days and spirited B-road driving.\n  \u003c\/p\u003e\n  \n  \u003cp\u003e\n    Expect crisp response, improved traction off corners and stable high-speed behaviour. We have installed this spring for customers and on our own cars, and the feedback has been consistently positive for balance, confidence and day-to-day usability.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eWhy enthusiasts choose 48170-37\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e200 N\/mm linear rate for predictable handling and reliable weight transfer under braking and acceleration.\u003c\/li\u003e\n    \u003cli\u003eWorks with Öhlins R\u0026amp;T coilover hardware to deliver composed rear support and strong traction.\u003c\/li\u003e\n    \u003cli\u003eGreat for fast road, track days and performance setups seeking a planted rear with clear feedback.\u003c\/li\u003e\n    \u003cli\u003eIdeal as a replacement spring or as part of a rear rate change to dial in your F8x chassis.\u003c\/li\u003e\n    \u003cli\u003eTested in-house with excellent customer satisfaction and real-world results on UK roads and circuits.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eKey details\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eSpring rate: 200 N\/mm linear.\u003c\/li\u003e\n    \u003cli\u003eType: Rear straight spring for Öhlins applications.\u003c\/li\u003e\n    \u003cli\u003eManufacturer reference: \u003cstrong\u003e48170-37\u003c\/strong\u003e.\u003c\/li\u003e\n    \u003cli\u003eSold individually. Price is for one spring.\u003c\/li\u003e\n    \u003cli\u003eRear position only.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eVehicle compatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBMW F87 M2 and M2 Competition\u003c\/li\u003e\n    \u003cli\u003eBMW F80 M3 including Competition and CS\u003c\/li\u003e\n    \u003cli\u003eBMW F82 and F83 M4 including Competition\u003c\/li\u003e\n    \u003cli\u003eF8x platform with Öhlins R\u0026amp;T coilover kits requiring a straight rear spring\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003ePerformance benefits\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eCleaner rotation on turn-in with supportive rear-end control.\u003c\/li\u003e\n    \u003cli\u003eReduced squat for better drive out of slow and medium speed corners.\u003c\/li\u003e\n    \u003cli\u003eConsistent rate for repeatable setup changes and alignment work.\u003c\/li\u003e\n    \u003cli\u003eConfidence-inspiring rear stability on bumpy B-roads and at track pace.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eWhat is included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x Öhlins rear straight spring, 200 N\/mm, part no. 48170-37\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eInstallation and setup\u003c\/h3\u003e\n  \u003cp\u003e\n    Professional fitting and geometry make a big difference to lap times and road manners. Book installation, corner weighting and alignment with MJ Modifications in Warwickshire. Request a quote at \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eNotes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eRear application only. Check your Öhlins kit uses a straight rear spring before ordering.\u003c\/li\u003e\n    \u003cli\u003eSuitable for rate changes or as a replacement spring on Öhlins R\u0026amp;T systems.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eManufacturer and warranty\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBrand: Öhlins\u003c\/li\u003e\n    \u003cli\u003eWarranty: 1 year manufacturer warranty\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eCommon searches\u003c\/h3\u003e\n  \u003cp\u003e\n    BMW F80 rear suspension spring upgrade, F82 M4 rear damper spring 200N mm, F83 convertible rear straight spring, F87 M2 Competition rear spring rate 200N mm, Öhlins rear axle spring 48170-37, BMW M car rear coil spring linear rate, F8x chassis rear spring replacement, performance rear spring UK, track day suspension parts BMW M2 M3 M4, Öhlins R and T rear spring 200 N per mm.\n  \u003c\/p\u003e\n  \n\u003c\/div\u003e","brand":"Ohlins","offers":[{"title":"Default Title","offer_id":56008741945730,"sku":null,"price":54.53,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/OhlinsBMWF80F82F87Spring_M2_M2Competition_M3_M4_-1_1946x_d0c8c40f-0cb7-49b6-a936-a26ec768907d.jpg?v=1764091693","url":"https:\/\/mjmodifications.co.uk\/products\/ohlins-bmw-f80-f82-f87-200-n-mm-rear-straight-spring-m2-m2-competition-m3-m4","provider":"MJ Modifications","version":"1.0","type":"link"}