{"product":{"id":10933121974614,"title":"MST Performance Cold Air Intake System - Ford Focus MK4 1.5T EcoBoost 2019+ | MST-FO-MK4020","body_html":"\u003ch2\u003eSummary\u003c\/h2\u003e\u003cp\u003eThe Focus MK4 ST is a serious hot hatch with a deliberately civilised intake. This MST Performance cold air intake system undoes that restraint, replacing the restrictive standard air box with precision-engineered aluminium pipework built for faster, smoother airflow into the turbo. The EcoBoost gains a cleaner feed and an induction note that matches the chassis' intent, while all fittings for a direct OEM-replacement install come in the box.\u003c\/p\u003e\u003ch2\u003eBest For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMK4 Focus ST owners who want induction sound with the boost\u003c\/li\u003e\n\u003cli\u003eA first bolt-on before or alongside a remap\u003c\/li\u003e\n\u003cli\u003eFreeing the intake route on a tuned EcoBoost build\u003c\/li\u003e\n\u003cli\u003eReplacing factory plastic trunking with hard aluminium pipe\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eIntake Character For A Committed Hot Hatch\u003c\/h2\u003e\u003cp\u003eMST design their kits around accelerating airflow and minimising turbulence, with top-quality components throughout. On the Focus ST that translates to a freer route feeding the turbo and a harder-edged intake note under load - exactly the character the ST badge promises. It suits standard cars and already-tuned ones, so it works at any build stage. The matching \u003ca href=\"\/products\/mst-performance-boost-pipe-ford-focus-mk4-st-2-3t-ecoboost-2019-mst-fo-mk4017\"\u003eMST boost pipe for the MK4 ST\u003c\/a\u003e continues the hard-pipe route on the charge side.\u003c\/p\u003e\u003ch2\u003eKey Specs\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eManufacturer: MST Performance\u003c\/li\u003e\n\u003cli\u003eProduct Type: Cold air intake system\u003c\/li\u003e\n\u003cli\u003eSKU: MST-FO-MK4020\u003c\/li\u003e\n\u003cli\u003eVehicle Application: Ford Focus MK4 ST (see fitment note on generation and year)\u003c\/li\u003e\n\u003cli\u003eMaterial: Aluminium intake pipework\u003c\/li\u003e\n\u003cli\u003eIncluded Items: All fittings for a direct OEM-replacement install\u003c\/li\u003e\n\u003cli\u003eFitment type: vehicle and engine specific\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment And Setup Checks\u003c\/h2\u003e\u003cp\u003eThis part is for the MK4-generation Focus ST. The applications table carries a 2014+ year notation, which spans earlier Focus generations too - so treat the generation as the deciding fact: confirm your car is the MK4 ST and check the part number against your exact model and build year before ordering.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eMST Performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCold air intake system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eMST-FO-MK4020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminium intake pipework\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle Application\u003c\/td\u003e\n\u003ctd\u003eFord Focus MK4 ST, 2014+ as listed - confirm generation and year against the part number\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Items\u003c\/td\u003e\n\u003ctd\u003eAll fittings for a direct OEM-replacement install\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWill this fit a MK3 Focus ST?\u003c\/h3\u003e\u003cp\u003eIt is catalogued for the MK4 ST. If your car is a MK3, check the correct MST part number for that generation rather than assuming this one fits.\u003c\/p\u003e\u003ch3\u003eDoes it need supporting modifications?\u003c\/h3\u003e\u003cp\u003eNo - it installs as a direct replacement for the standard air box using the supplied fittings, on standard or tuned cars.\u003c\/p\u003e","vendor":"MST Performance","product_type":"Induction Kit","created_at":"2026-07-03T13:01:22+01:00","handle":"mst-performance-cold-air-intake-system-ford-focus-mk4-st-2014-mst-fo-mk4020","updated_at":"2026-09-10T17:49:16+01:00","published_at":"2026-07-03T13:01:22+01:00","template_suffix":null,"published_scope":"global","tags":"brand:mst-performance, cat:air-intake, dept:performance-parts, fits:ford-focus, make:ford, type:induction-kit","variants":[{"id":54418577555798,"product_id":10933121974614,"title":"Default Title","price":"373.16","sku":"MST-FO-MK4020","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Default Title","option2":null,"option3":null,"created_at":"2026-07-03T13:01:23+01:00","updated_at":"2026-09-10T17:49:16+01:00","taxable":true,"barcode":null,"grams":4000,"image_id":null,"weight":4.0,"weight_unit":"kg","requires_shipping":true,"quantity_rule":{"min":1,"max":null,"increment":1},"price_currency":"GBP","compare_at_price_currency":"","quantity_price_breaks":[]}],"options":[{"id":14003698598230,"product_id":10933121974614,"name":"Title","position":1,"values":["Default Title"]}],"images":[{"id":82424553079126,"product_id":10933121974614,"position":1,"created_at":"2026-07-14T13:09:23+01:00","updated_at":"2026-07-14T13:09:25+01:00","alt":"MST Performance Cold Air Intake System – Ford Focus MK4 ST 2014+ | MST-FO-MK4020 | Image 1","width":1800,"height":1243,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/9bb277bd-47bf-494b-9b61-335dad74e653__13227.jpg?v=1784030965","variant_ids":[]},{"id":82424553111894,"product_id":10933121974614,"position":2,"created_at":"2026-07-14T13:09:23+01:00","updated_at":"2026-07-14T13:09:25+01:00","alt":"MST Performance Cold Air Intake System – Ford Focus MK4 ST 2014+ | MST-FO-MK4020 | Image 2","width":1800,"height":1243,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/b01fac48-02d1-442e-a6d7-a9c2efea2f11__30595.jpg?v=1784030965","variant_ids":[]}],"image":{"id":82424553079126,"product_id":10933121974614,"position":1,"created_at":"2026-07-14T13:09:23+01:00","updated_at":"2026-07-14T13:09:25+01:00","alt":"MST Performance Cold Air Intake System – Ford Focus MK4 ST 2014+ | MST-FO-MK4020 | Image 1","width":1800,"height":1243,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/9bb277bd-47bf-494b-9b61-335dad74e653__13227.jpg?v=1784030965","variant_ids":[]}}}