{"product_id":"n55-cast-stainless-steel-high-flow-performance-downpipe-bmw-1-2-3-4-series-11-16","title":"N55 Power Pipes EWG Downpipe – BMW 1, 2, 3 \u0026 4 Series (11-16)","description":"\u003cp data-path-to-node=\"1\"\u003eThe \u003cb data-path-to-node=\"1\" data-index-in-node=\"17\"\u003eN55 High-Flow Performance Downpipe\u003c\/b\u003e is widely recognized as the single most effective hardware modification available to unleash hidden power, reduce turbo lag, and elevate the exhaust note of BMW's legendary 3.0L turbocharged inline-six engine. The factory downpipe houses a restrictive ceramic catalytic converter that creates significant exhaust backpressure directly at the turbocharger's turbine wheel exit. This performance upgrade replaces that bottleneck with a smooth, oversized, mandrel-bent casting that drastically accelerates exhaust gas velocity, lowers thermal stress on the turbocharger, and allows the twin-scroll system to spool up almost instantly.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eManufactured from premium, aircraft-grade \u003cb data-path-to-node=\"2\" data-index-in-node=\"42\"\u003eT304 Stainless Steel\u003c\/b\u003e, this downpipe features flawless, high-quality \u003cb data-path-to-node=\"2\" data-index-in-node=\"110\"\u003eTIG-welded seams\u003c\/b\u003e for maximum structural durability under extreme thermal cycling. The smooth-walled internal diameter minimizes turbulence, transforming the acoustic profile of the N55 engine into a deep, aggressive, and crisp exhaust note under load, while remaining completely refined and drone-free during normal highway cruising.\u003c\/p\u003e\n\u003cp data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003eVehicle Compatibility:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"3\"\u003eThis performance downpipe is precision-engineered as a direct bolt-on upgrade for N55-equipped electronic wastegate (EWG) and mechanical wastegate (MWG) vehicles across the F-chassis generation:\u003c\/p\u003e\n\u003cul data-path-to-node=\"4\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,0,0\"\u003e\u003cb data-path-to-node=\"4,0,0\" data-index-in-node=\"0\"\u003e1 Series (F20\/F21):\u003c\/b\u003e 2011–2016 M135i \/ M135ix\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,1,0\"\u003e\u003cb data-path-to-node=\"4,1,0\" data-index-in-node=\"0\"\u003e2 Series (F22\/F23):\u003c\/b\u003e 2014–2016 M235i \/ M235ix\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,2,0\"\u003e\u003cb data-path-to-node=\"4,2,0\" data-index-in-node=\"0\"\u003e3 Series (F30\/F31\/F34):\u003c\/b\u003e 2012–2015 335i \/ 335ix (Sedan, Touring, \u0026amp; Gran Turismo)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,3,0\"\u003e\u003cb data-path-to-node=\"4,3,0\" data-index-in-node=\"0\"\u003e4 Series (F32\/F33\/F36):\u003c\/b\u003e 2013–2016 435i \/ 435ix (Coupe, Convertible, \u0026amp; Gran Coupe)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"6\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,0,0\"\u003e\u003cb data-path-to-node=\"6,0,0\" data-index-in-node=\"0\"\u003eSubstantial Power Gains:\u003c\/b\u003e Yields an estimated increase of 15–22 horsepower and 20–28 lb-ft of torque on a stock tune, and stands as a mandatory hardware requirement for Stage 2 ECU software maps.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,1,0\"\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"0\"\u003eTIG-Welded T304 Construction:\u003c\/b\u003e Heavy-duty, mandrel-bent stainless steel tubing coupled with robust CNC-machined flanges ensures zero warping and total resilience against corrosion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,2,0\"\u003e\u003cb data-path-to-node=\"6,2,0\" data-index-in-node=\"0\"\u003eOptimized Thermal Efficiency:\u003c\/b\u003e Substantially reduces EGTs (Exhaust Gas Temperatures) at the exhaust manifold, protecting critical internal components during high-load or track conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,3,0\"\u003e\u003cb data-path-to-node=\"6,3,0\" data-index-in-node=\"0\"\u003eDirect Factory Alignment:\u003c\/b\u003e Features precise placement for the original oxygen (\u003cspan class=\"math-inline\" data-math=\"O_2\" data-index-in-node=\"78\"\u003e$O_2$\u003c\/span\u003e) sensor bungs and factory mounting brackets for a straightforward mechanical installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,4,0\"\u003e\u003cb data-path-to-node=\"6,4,0\" data-index-in-node=\"0\"\u003eEnhanced Turbo Spool:\u003c\/b\u003e Noticeably sharpens throttle response and virtually eliminates low-end turbo lag by allowing the turbine wheel to move exhaust gases without restriction.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003eSpecifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\"\u003e\u003cb data-path-to-node=\"9,0,0\" data-index-in-node=\"0\"\u003eEngine Application:\u003c\/b\u003e BMW N55 3.0L Turbo Inline-6\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,0\"\u003e\u003cb data-path-to-node=\"9,1,0\" data-index-in-node=\"0\"\u003eChassis Compatibility:\u003c\/b\u003e F20 \/ F22 \/ F30 \/ F32 \/ F36\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,0\"\u003e\u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"0\"\u003eMaterial:\u003c\/b\u003e T304 Stainless Steel (Mandrel-Bent)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,3,0\"\u003e\u003cb data-path-to-node=\"9,3,0\" data-index-in-node=\"0\"\u003eSeams:\u003c\/b\u003e High-Quality Precision TIG-Welded\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,4,0\"\u003e\u003cb data-path-to-node=\"9,4,0\" data-index-in-node=\"0\"\u003eTubing Diameter:\u003c\/b\u003e Tapered 4.0\" (102mm) down to 3.15\" (80mm) to match factory exhaust routing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,5,0\"\u003e\u003cb data-path-to-node=\"9,5,0\" data-index-in-node=\"0\"\u003eO2 Sensor Bungs:\u003c\/b\u003e Dual Threaded Factory Locations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,6,0\"\u003e\u003cb data-path-to-node=\"9,6,0\" data-index-in-node=\"0\"\u003eCondition:\u003c\/b\u003e Brand New High-Performance Hardware Set\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eN55 EWG \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MYTY Auto Parts","offers":[{"title":"Default Title","offer_id":49567128649967,"sku":"MYTY025","price":6500.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/7183\/5631\/files\/N55-High-Flow-Stainless-Steel-Performance-Downpipe-BMW-135i-235i-435i.png?v=1779262169","url":"https:\/\/myty.co.za\/products\/n55-cast-stainless-steel-high-flow-performance-downpipe-bmw-1-2-3-4-series-11-16","provider":"MYTY Auto Parts","version":"1.0","type":"link"}