{"title":"N55","description":"\u003cp\u003e\u003cstrong\u003ePerformance downpipes and sport catalysts for the BMW N55 3.0L turbo I6.\u003c\/strong\u003e Direct bolt-on upgrades for the 335i, 435i, M2 and X5\/X6 — mandrel-bent T304 stainless, available catless or with a 200-cell high-flow catalyst, engineered and test-fitted in-house. Free tracked US shipping, made to order in 10–14 days, with fitment confirmed before you buy.\u003c\/p\u003e\u003cp\u003eThe N55 responds strongly to a freer-flowing exhaust: faster turbo spool, a deeper tone and the headroom your tune needs. Every OKTAN N55 part carries a lifetime warranty against manufacturing defects.\u003c\/p\u003e","products":[{"product_id":"bmw-n55-downpipe-f20-f22-f30-f32-m135i-m235i-335i-435i","title":"BMW N55 Downpipe — E8x \/ E9x \/ F2x \/ F3x (135i \/ 335i \/ 435i \/ M135i \/ M235i)","description":"\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 2011–2018 BMW 135i, 335i, 435i, M135i \u0026amp; M235i (E82\/E88\/E90\/E92 · F20\/F21\/F22\/F23\/F30\/F32\/F33) — N55 single-turbo 3.0L\u003c\/p\u003e\u003cp\u003eOne downpipe fits every N55 chassis — the N55 uses the same turbo outlet across E- and F-series, so this precision mandrel-bent \u003cstrong\u003estainless steel\u003c\/strong\u003e catless downpipe bolts to OEM locations on all of them. Removing the restrictive cat frees flow for faster spool, a deeper note and real power once tuned.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFits E82\/E88\/E90\/E92 and F20\/F21\/F22\/F23\/F30\/F32\/F33 N55 cars\u003c\/li\u003e\n\u003cli\u003eMandrel-bent stainless steel, TIG-welded, OEM-location flanges \u0026amp; hangers\u003c\/li\u003e\n\u003cli\u003eBest paired with a supporting tune to clear codes and unlock gains\u003c\/li\u003e\n\u003cli\u003eEngine-specific fitting walkthrough in \u003ca href=\"\/blogs\/garage\"\u003eThe Garage\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eCatless \/ de-cat design — intended for off-road \u0026amp; competition use only. You are responsible for emissions compliance where you drive.\u003c\/em\u003e\u003c\/p\u003e","brand":"OKTAN","offers":[{"title":"Default Title","offer_id":48775880605941,"sku":null,"price":389.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/6868\/5557\/files\/H05561f28f1ea46b28ea9da64f9f12fe35.jpg?v=1787840352"}],"url":"https:\/\/oktanperformance.com\/collections\/n55.oembed","provider":"OktanPerformance - Only Best Performance Parts","version":"1.0","type":"link"}