{"product_id":"milltek-secondary-cat-back-exhaust-bmw-1-series-135i-coupe-e82-cabriolet-e88-n55-10-12","title":"Milltek Secondary Cat Back Exhaust BMW 1 Series 135i Coupé E82 Cabriolet E88 N55 10-12","description":"\u003ch2\u003eMilltek Secondary Cat-back Exhaust for BMW 1 Series 135i Coupé E82 and Cabriolet E88 (N54) (2008-2010) – Sharper Sound, Reduced Back Pressure\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's cat-back system for the BMW 1 Series 135i Coupé E82 and Cabriolet E88 (N55). It replaces everything from the factory catalytic converter rearward with wider-bore pipework, a re-profiled mid-pipe and silencers tuned specifically for this platform, cutting back pressure and sharpening the exhaust note. The factory catalytic converter stays in place, so the car's emissions hardware is left as standard.\u003c\/p\u003e\n\u003cp\u003eIt's aimed at owners who want a noticeably different sound and a genuine, if modest, flow improvement without touching anything upstream of the cat: a straightforward bolt-on that doesn't need a remap or any other supporting mods to enjoy.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Secondary Cat-back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 63.5mm (2.5\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip Style:\u003c\/strong\u003e Twin 80mm GT80\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC Approved:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e63.5mm (2.5\") pipework\u003c\/li\u003e\n\u003cli\u003eReplaces the standard exhaust from the catalytic converter back, so the factory cat is retained\u003c\/li\u003e\n\u003cli\u003eEC approved\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBMW 1 Series 135i Coupé E82 and Cabriolet E88 (N54) (2008-2010)\u003c\/li\u003e\n\u003cli\u003eBMW 1 Series 135i Coupé E82 and Cabriolet E88 (N55) (2010-2012)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the BMW 1 Series 118d \u0026amp; 120d M Sport Coupé (E82), which needs the \u003ca href=\"\/products\/milltek-cat-back-exhaust-bmw-1-series-118d-120d-m-sport-coupe-e82-08-12\"\u003eMilltek Cat-back Exhaust BMW 1 Series 118d 120d M Sport Coupé E82 08-12\u003c\/a\u003e; the BMW 1 Series M135i 3 \u0026amp; 5 Door (F21 \u0026amp; F20, Non-xDrive), which needs the \u003ca href=\"\/products\/milltek-cat-back-exhaust-bmw-1-series-m135i-3dr-5dr-f21-f20-non-xdrive-12-16\"\u003eMilltek Cat-back Exhaust BMW 1 Series M135i 3dr 5dr F21 F20, Non-xDrive 12-16\u003c\/a\u003e; the BMW 1 Series 118d \u0026amp; 120d M Sport 3-door (E81), which needs the \u003ca href=\"\/products\/milltek-cat-back-exhaust-bmw-1-series-118d-120d-m-sport-3dr-e81-07-12\"\u003eMilltek Cat-back Exhaust BMW 1 Series 118d 120d M Sport 3dr E81 07-12\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eWe recommend professional fitting on a ramp. Once fitted, check the tailpipe alignment and re-check all clamps after the first few hundred miles.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the BMW 1 Series 135i Coupé E82 and Cabriolet E88 (N55)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the BMW 1 Series 135i Coupé E82 and Cabriolet E88 (N55) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the BMW 1 Series 118d \u0026amp; 120d M Sport Coupé (E82)?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-cat-back-exhaust-bmw-1-series-118d-120d-m-sport-coupe-e82-08-12\"\u003eMilltek Cat-back Exhaust BMW 1 Series 118d 120d M Sport Coupé E82 08-12\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eEvery version of this part is listed by Milltek as EC approved.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eNo. It fits behind the factory catalytic converter, so no software changes are needed.\u003c\/p\u003e\n\u003ch3\u003eDoes it keep the factory catalytic converter?\u003c\/h3\u003e\n\u003cp\u003eYes. It fits behind the factory catalytic converter, which stays in place.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":56392759673217,"sku":"MIL-SSXBM948","price":1156.61,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXBM948_1.jpg?v=1791891919","url":"https:\/\/milltekexhaustshop.com\/products\/milltek-secondary-cat-back-exhaust-bmw-1-series-135i-coupe-e82-cabriolet-e88-n55-10-12","provider":"Milltek Exhaust Shop","version":"1.0","type":"link"}