{"product_id":"oem-bmw-b58-downpipe-decat-sport-cat-gasket-18328612538","title":"Genuine BMW B58 Turbo Outlet Gasket\/Sealing Ring 18328612538 - Turbo to Downpipe\/Front Pipe Exhaust Flange Seal - Fits M140i M240i 340i 440i 540i 740i - OEM Turbocharger Gasket for Decat, Sport Cat or Stock Cat","description":"\u003cdiv class=\"product-description\"\u003e\n  \n  \u003ch2\u003eGenuine BMW B58 Turbo Outlet Sealing Ring - Part Number \u003cstrong\u003e18328612538\u003c\/strong\u003e\n\u003c\/h2\u003e\n  \n  \u003cp\u003e\n    Lock in a tight, leak-free joint at the turbocharger outlet with this factory BMW sealing ring for the B58 engine, part number \u003cstrong\u003e18328612538\u003c\/strong\u003e. This OE turbo flange gasket sits between the turbo housing and the front pipe, giving a reliable exhaust gas seal whether you are installing a catless pipe, a high flow sports catalyst, or refitting the original converter. It is the correct direct-fit ring for B58 turbo hardware and the only one we trust on performance builds.\n  \u003c\/p\u003e\n  \n  \u003cp\u003e\n    Used daily in our workshop and by hundreds of happy customers, this BMW original sealing ring delivers consistent fitment and long-term durability. If you are upgrading the front section or simply refreshing the exhaust joint, replace this ring every time the assembly comes apart to prevent blow-by, fumes and power loss.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eWhy this BMW B58 turbo flange ring is the smart choice\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eOriginal BMW component for exact fit and dependable sealing\u003c\/li\u003e\n    \u003cli\u003eCorrect part reference \u003cstrong\u003e18328612538\u003c\/strong\u003e for B58 turbo outlet\u003c\/li\u003e\n    \u003cli\u003eIdeal for turbo to front pipe connection on modified or stock systems\u003c\/li\u003e\n    \u003cli\u003ePerfect when fitting catless pipes, high flow sports catalysts or the factory cat\u003c\/li\u003e\n    \u003cli\u003eHelps stop exhaust leaks, odours and unwanted noise\u003c\/li\u003e\n    \u003cli\u003eRecommended replacement during any turbo outlet or downpipe swap\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eVehicle compatibility\u003c\/h3\u003e\n  \u003cp\u003eDesigned for BMW models running the B58 six-cylinder engine, including:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eBMW M140i\u003c\/li\u003e\n    \u003cli\u003eBMW M240i\u003c\/li\u003e\n    \u003cli\u003eBMW 340i\u003c\/li\u003e\n    \u003cli\u003eBMW 440i\u003c\/li\u003e\n    \u003cli\u003eBMW 540i\u003c\/li\u003e\n    \u003cli\u003eBMW 740i\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eUse cases\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eTurbo outlet to front pipe seal on performance upgrades\u003c\/li\u003e\n    \u003cli\u003eCatless front pipe installations\u003c\/li\u003e\n    \u003cli\u003eHigh flow sports catalyst conversions\u003c\/li\u003e\n    \u003cli\u003eRefitting the original catalytic converter\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eWhat is included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x BMW B58 turbo outlet sealing ring, part number \u003cstrong\u003e18328612538\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eProfessional fitting\u003c\/h3\u003e\n  \u003cp\u003e\n    Want expert installation and advice on your B58 setup? Book fitting with MJ Modifications in Warwickshire. Request a quote at \n    \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eSearch-friendly terms\u003c\/h3\u003e\n  \u003cp\u003e\n    BMW B58 turbo outlet gasket 18328612538, BMW turbo flange ring B58, BMW B58 exhaust flange seal, turbo to front pipe gasket BMW, B58 turbocharger gasket ring, BMW M140i turbo outlet gasket, M240i exhaust joint ring, 340i turbo connection seal, 440i catalyst flange ring, 540i turbo outlet sealing ring, 740i front pipe gasket, B58 catless pipe gasket, B58 high flow catalyst seal, BMW B58 turbo joint gasket, BMW B58 sealing ring 18328612538, B58 exhaust leak fix gasket, BMW six cylinder turbo gasket, B58 turbo to pipe seal, BMW B58 exhaust hardware gasket, performance exhaust gasket B58.\n  \u003c\/p\u003e\n  \n\u003c\/div\u003e","brand":"Nforcd","offers":[{"title":"Default Title","offer_id":55978727997826,"sku":"18328612538","price":24.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/s-l640_635x445_fa1079ed-461f-475e-b523-41884c932a3f.webp?v=1763380513","url":"https:\/\/mjmodifications.co.uk\/products\/oem-bmw-b58-downpipe-decat-sport-cat-gasket-18328612538","provider":"MJ Modifications","version":"1.0","type":"link"}