{"product_id":"high-flow-t304-stainless-steel-exhaust-downpipe-with-heat-shield-for-bmw-m135i-n55-3-0t-i6","title":"High Flow T304 Stainless Steel Exhaust Downpipe with Heat Shield for BMW M135i N55 3.0T I6","description":"\u003cdiv\u003e\n\u003ch3\u003eDESCRIPTION\u003c\/h3\u003e\n\u003cp\u003eThis performance heat‑shielded exhaust downpipe is engineered for BMW M135i with N55 3.0L inline‑six turbo engine. Optimized pipe path improves exhaust gas flow and reduces backpressure, delivering snappier throttle response and enhanced exhaust tone. Full‑coverage heat shield wrapping minimizes engine‑bay radiant heat and protects surrounding components from high exhaust temperature. Constructed from heavy‑gauge T304 stainless steel with full TIG welding. Flanges, mounting tabs and sensor bungs follow OEM layout for direct bolt‑on fitment without cutting or custom modification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eVEHICLE FITMENT\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eFor BMW M135i — N55 3.0L Turbo Inline‑Six Engine\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eKEY FEATURES\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Wrapped Heat Shield\u003c\/strong\u003e: Suppresses heat radiation inside engine bay, prevents heat damage to nearby wiring and rubber parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT304 Stainless Steel Tubing\u003c\/strong\u003e: Heavy‑gauge mandrel bent construction, great heat‑resistant and anti‑corrosion performance for street driving.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Pre‑Welded Sensor Bungs\u003c\/strong\u003e: Matches factory sensor mounting positions for reliable ECU signal feedback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull TIG Welding Process\u003c\/strong\u003e: Consistent hand‑made weld seams, stable sealing performance under repeated high‑temperature cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Direct Bolt‑On\u003c\/strong\u003e: Mounting brackets and flange dimensions match original factory specifications, no fabrication required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eTECH SPECIFICATIONS\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Material\u003c\/strong\u003e: T304 stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface Treatment\u003c\/strong\u003e: Full heat‑shield wrapping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWelding Process\u003c\/strong\u003e: Full TIG argon‑arc welding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine\u003c\/strong\u003e: N55 3.0L Turbo Inline‑Six\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplicable Model\u003c\/strong\u003e: M135i\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eWHAT'S IN THE BOX\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Heat‑Shielded Exhaust Downpipe\u003c\/li\u003e\n\u003cli\u003eFull Set OEM Matching Installation Gaskets \u0026amp; Hardware Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Wanmax Racing","offers":[{"title":"Default Title","offer_id":55209734439284,"sku":"WMR-BMW-M135I-N55-DP-HS-304","price":215.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/7244\/2740\/files\/ExhaustDownPipefor2015bmwm135in55engine3.0i6N55_6.jpg?v=1787273947","url":"https:\/\/wanmaxracing.com\/products\/high-flow-t304-stainless-steel-exhaust-downpipe-with-heat-shield-for-bmw-m135i-n55-3-0t-i6","provider":"Wanmax Racing","version":"1.0","type":"link"}