{"product_id":"remus-exhaust-options-for-bmw-m135i-f2x","title":"Remus Cat-Back \u0026 Rear Silencer for BMW 1 Series M135i F20 F21 (F2x) – OPF\/GPF Compatible Sports Exhaust System, Stainless Performance Back Box\/Backbox, Muffler with Black Chrome Tailpipes","description":"\u003cp\u003e\u003cstrong\u003ePerformance stainless cat-back and rear silencer upgrade for BMW 1 Series M135i F20 F21 (F2x, OPF GPF models)\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eUnlock a sharper soundtrack and freer-flowing performance with this premium Austrian-built system. Prices already include a 7% saving, so you get exceptional value on a top-tier sports exhaust straight away. Perfect for enthusiasts seeking a deeper, more engaging tone and a quality finish to match the M135i’s character.\u003c\/p\u003e\n\n\u003cp\u003eWhy owners choose this system:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRich, motorsport-inspired sound with refined volume for daily use\u003c\/li\u003e\n  \u003cli\u003eHigh-grade stainless construction with a shot-blasted finish for durability\u003c\/li\u003e\n  \u003cli\u003eOptimised gas flow for reduced back pressure and improved responsiveness\u003c\/li\u003e\n  \u003cli\u003eLightweight layout compared to stock for a subtle performance edge\u003c\/li\u003e\n  \u003cli\u003ePrecision fit to the F20 F21 chassis with OE-style alignment and presentation\u003c\/li\u003e\n  \u003cli\u003eHandcrafted in Austria for exceptional build quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWe’ve installed this system on customer cars and feedback has been fantastic. Owners love the deeper tone, the quality of the black chrome tailpipes and the confident, refined soundtrack on throttle. It is a superb upgrade for anyone searching for a BMW M135i sports exhaust, cat back system, rear box, backbox, performance muffler, or OPF GPF compatible exhaust for the F2x platform.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOnly suitable for vehicles equipped with OPF GPF\u003c\/li\u003e\n  \u003cli\u003ePipe diameter: 84 mm\u003c\/li\u003e\n  \u003cli\u003eInstallation note: the original system requires cutting during fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAvailable configurations and part numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRacing rear silencer with black chrome tips\u003cbr\u003e\n  Part numbers: 088914 0500 + 087011 1683CB\u003c\/li\u003e\n  \u003cli\u003eRear silencer with black chrome tips\u003cbr\u003e\n  Part numbers: 088014 0500 + 087011 1683CB\u003c\/li\u003e\n  \u003cli\u003eRacing cat-back system with black chrome tips\u003cbr\u003e\n  Part numbers: 088014 0300 + 088914 0500 + 087011 1683CB\u003c\/li\u003e\n  \u003cli\u003eCat-back system with black chrome tips\u003cbr\u003e\n  Part numbers: 088014 0300 + 088014 0500 + 087011 1683CB\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFitting and support\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWant it installed correctly first time? Book professional fitment with MJ Modifications in Warwickshire. Email \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e for a quote and availability.\u003c\/p\u003e\n\n\u003cp\u003eSearch-friendly terms customers use for this product: BMW 1 Series M135i F20 F21 exhaust upgrade, performance back box, black chrome tailpipes, OPF GPF compatible catback, stainless steel sports exhaust, rear silencer replacement, performance muffler, F2x M135i sound upgrade, lightweight exhaust system, premium Austrian exhaust.\u003c\/p\u003e","brand":"Performance M","offers":[{"title":"Racing Rear Silencer with Black Chrome Tips","offer_id":55977412100482,"sku":"REM0003","price":904.5,"currency_code":"GBP","in_stock":true},{"title":"Rear Silencer with Black Chrome Tips","offer_id":55977412133250,"sku":null,"price":904.5,"currency_code":"GBP","in_stock":true},{"title":"Racing Cat-Back System with Black Chrome Tips","offer_id":55977412166018,"sku":null,"price":1503.32,"currency_code":"GBP","in_stock":true},{"title":"Cat-Back System with Black Chrome Tips","offer_id":55977412198786,"sku":null,"price":1503.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/0889140500__49075.1635937107__00823.1652872636.jpg?v=1763374682","url":"https:\/\/mjmodifications.co.uk\/products\/remus-exhaust-options-for-bmw-m135i-f2x","provider":"MJ Modifications","version":"1.0","type":"link"}