{"product_id":"manley-piston-ring-set-ford-focus-rs-lz-mustang-ecoboost-fm-fn","title":"Manley Piston Ring Set - Ford Focus RS (LZ) \/ Mustang EcoBoost (FM \/ FN \/ FO)","description":"\u003ch2\u003eManley Piston Ring Set - Ford Focus RS (LZ) \/ Mustang EcoBoost (FM \/ FN \/ FO)\u003c\/h2\u003e\u003cp\u003eManley piston ring sets for the 2.3L EcoBoost in the Ford Focus RS (LZ) and the Mustang EcoBoost (FM \/ FN, including the High Performance, and the 2024-on FO). Each set matches one of Manley's 2.3L EcoBoost Platinum Series piston sets (Standard and Extreme Duty), so you can re-ring an engine or keep a matched set on the shelf for the rebuild.\u003c\/p\u003e\u003cp\u003eEvery set has a Premium Steel top ring, a Napier-style second ring and a three-piece oil ring (1.2 mm \/ 1.2 mm \/ 2.8 mm). Steel top rings are Manley's pick for boosted and high-power engines. The rings are file fit, so the end gaps can be set to suit your boost and fuel.\u003c\/p\u003e\u003ch3\u003eWhich ring set do I need?\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eRing set\u003c\/th\u003e\n\u003cth\u003eBore\u003c\/th\u003e\n\u003cth\u003eSuits Manley piston set\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e46875-4\u003c\/td\u003e\n\u003ctd\u003e87.50 mm (standard)\u003c\/td\u003e\n\u003ctd\u003e637000C-4 \/ 637000CE-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e46876-4\u003c\/td\u003e\n\u003ctd\u003e87.60 mm (+0.10 mm)\u003c\/td\u003e\n\u003ctd\u003e637001C-4 \/ 637001CE-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e46880-4\u003c\/td\u003e\n\u003ctd\u003e88.00 mm (+0.50 mm)\u003c\/td\u003e\n\u003ctd\u003e637005C-4 \/ 637005CE-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Manley's 2.3L EcoBoost \u003ca href=\"\/products\/manley-platinum-series-piston-set-ford-focus-rs-lz-mustang-ecoboost-fm-fn\"\u003episton sets\u003c\/a\u003e already come with these rings; this listing is the ring set on its own. Choose the set that matches your piston part number and finished bore. The rings must be file fitted and gapped before installation. Installation by a professional engine builder is recommended.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePremium Steel top ring for high-boost use\u003c\/li\u003e\n\u003cli\u003eNapier-style second ring for oil control\u003c\/li\u003e\n\u003cli\u003eThree-piece oil ring, 7-11 lb tension\u003c\/li\u003e\n\u003cli\u003e1.2 mm \/ 1.2 mm \/ 2.8 mm ring package to suit Manley 2.3L EcoBoost pistons\u003c\/li\u003e\n\u003cli\u003eFile fit, so end gaps can be set for your build\u003c\/li\u003e\n\u003cli\u003eSet of 4: one engine\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePairs Well With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/manley-platinum-series-piston-set-ford-focus-rs-lz-mustang-ecoboost-fm-fn\"\u003eManley Platinum Series Piston Set - Ford Focus RS (LZ) \/ Mustang EcoBoost (FM \/ FN \/ FO)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/manley-h-beam-connecting-rod-set-ford-focus-rs-lz-mustang-ecoboost-fm-fn\"\u003eManley H-Beam Connecting Rod Set - Ford Focus RS (LZ) \/ Mustang EcoBoost (FM \/ FN \/ FO)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/arp-head-stud-kit-ford-2-3-ecoboost-focus-rs-lz-mustang-s550-12-point\"\u003eARP Head Stud Kit - Ford 2.3 EcoBoost - Focus RS (LZ) \/ Mustang (S550) - 12-Point\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"chicane-links\"\u003eShop more: \u003ca href=\"\/collections\/vendors?q=Manley\"\u003eManley\u003c\/a\u003e | \u003ca href=\"\/collections\/pistons\"\u003ePistons\u003c\/a\u003e | \u003ca href=\"\/collections\/rods-cranks-and-bearings\"\u003eRods, Cranks and Bearings\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eNeed help choosing parts? Contact our team at \u003ca href=\"mailto:sales@chicaneaustralia.com.au\"\u003esales@chicaneaustralia.com.au\u003c\/a\u003e.\u003c\/p\u003e","brand":"Manley","offers":[{"title":"87.50mm (STD)","offer_id":54243866083621,"sku":"46875-4","price":395.0,"currency_code":"AUD","in_stock":true},{"title":"87.60mm (+0.10mm)","offer_id":54243866116389,"sku":"46876-4","price":395.0,"currency_code":"AUD","in_stock":true},{"title":"88.00mm (+0.50mm)","offer_id":54243866149157,"sku":"46880-4","price":395.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0918\/2943\/6709\/files\/dc1a06ba8dd6ad1cb4bea5478355f1d8L.jpg?v=1792881709","url":"https:\/\/www.chicaneaustralia.com.au\/products\/manley-piston-ring-set-ford-focus-rs-lz-mustang-ecoboost-fm-fn","provider":"Chicane Australia","version":"1.0","type":"link"}