{"product_id":"high-flow-racing-downpipe-with-1-8-npt-egt-bung-fit-for-bmw-b46-g20-g30-f32-230i-330i-430i-performance-upgrade","title":"High Flow Racing Downpipe with 1\/8 NPT EGT Bung for BMW B46 G20 G30 F32 230i 330i 430i Performance Upgrade","description":"\u003cdiv\u003e\n\u003ch3\u003eDESCRIPTION\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cstrong\u003eThis direct bolt-on catless exhaust downpipe is engineered for BMW B46 2.0L turbo engine platforms (2016+).\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eWith a built-in woven flex pipe that absorbs engine vibration and eliminates pipe cracking. The optimized high-flow path reduces exhaust backpressure, improves throttle response, and delivers a deeper sport exhaust tone. This is a decat version without internal catalytic converter core, compatible with US-spec and global B46 models, also fits Toyota Supra and BMW Z4 G29 with B46 engine.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eConstructed from heavy-duty stainless steel with brushed finish, this downpipe features a precision-woven flex joint to dampen vibration stress. Full professional TIG welding ensures robust, leak-free performance under high-temperature exhaust conditions. CNC machined flanges deliver stable sealing, and all factory mounting points are reserved for hassle-free bolt-on installation without cutting or modification. Pre-welded O2 sensor bungs support factory sensor installation, making it a versatile upgrade for both stock and modified setups.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eVEHICLE FITMENT\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"669\" height=\"440\" style=\"border-collapse: collapse; width: 557px;\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"135\" style=\"width: 105px;\"\u003e \u003ccol width=\"112\" style=\"width: 66px;\"\u003e \u003ccol width=\"128\" style=\"width: 153px;\"\u003e \u003ccol width=\"144\" style=\"width: 116px;\"\u003e \u003ccol width=\"150\" style=\"width: 116px;\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr height=\"40\" style=\"height: 30.00pt;\"\u003e\n\u003ctd colspan=\"5\" class=\"et2\" height=\"40\" width=\"669\" style=\"height: 30pt; width: 501.75pt; text-align: center;\"\u003e\u003cstrong\u003eBMW B46 Downpipe 100% Fitment List\u003cspan style=\"mso-spacerun: yes;\"\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"40\" style=\"height: 30.00pt;\"\u003e\n\u003ctd class=\"et3\" height=\"40\" width=\"135\" style=\"height: 30.00pt; width: 101.25pt;\"\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"et3\" width=\"112\" style=\"width: 84.00pt;\"\u003e\u003cstrong\u003eChassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"et3\" width=\"128\" style=\"width: 96.00pt;\"\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"et3\" width=\"144\" style=\"width: 108.00pt;\"\u003e\u003cstrong\u003eModel Variant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"et3\" width=\"150\" style=\"width: 112.50pt;\"\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"40\" style=\"height: 30.00pt;\"\u003e\n\u003ctd class=\"et3\" height=\"40\" width=\"135\" style=\"height: 30.00pt; width: 101.25pt;\"\u003eFor BMW\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"112\" style=\"width: 84.00pt;\"\u003eF22 \/ F23\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"128\" style=\"width: 96.00pt;\"\u003e2017–2021\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"144\" style=\"width: 108.00pt;\"\u003e230i \/ 230i xDrive\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"150\" style=\"width: 112.50pt;\"\u003e2.0L B46 Turbo I4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"40\" style=\"height: 30.00pt;\"\u003e\n\u003ctd class=\"et3\" height=\"40\" width=\"135\" style=\"height: 30.00pt; width: 101.25pt;\"\u003eFor BMW\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"112\" style=\"width: 84.00pt;\"\u003eG42\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"128\" style=\"width: 96.00pt;\"\u003e2022–Present\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"144\" style=\"width: 108.00pt;\"\u003e230i \/ 230i xDrive\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"150\" style=\"width: 112.50pt;\"\u003e2.0L B46 Turbo I4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"40\" style=\"height: 30.00pt;\"\u003e\n\u003ctd class=\"et3\" height=\"40\" width=\"135\" style=\"height: 30.00pt; width: 101.25pt;\"\u003eFor BMW\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"112\" style=\"width: 84.00pt;\"\u003eF30 \/ F31 \/ F34\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"128\" style=\"width: 96.00pt;\"\u003e2017–2018\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"144\" style=\"width: 108.00pt;\"\u003e330i \/ 330i xDrive\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"150\" style=\"width: 112.50pt;\"\u003e2.0L B46 Turbo I4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"40\" style=\"height: 30.00pt;\"\u003e\n\u003ctd class=\"et3\" height=\"40\" width=\"135\" style=\"height: 30.00pt; width: 101.25pt;\"\u003eFor BMW\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"112\" style=\"width: 84.00pt;\"\u003eG20\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"128\" style=\"width: 96.00pt;\"\u003e2019–Present\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"144\" style=\"width: 108.00pt;\"\u003e330i \/ 330i xDrive \/ 330e\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"150\" style=\"width: 112.50pt;\"\u003e2.0L B46 Turbo I4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"40\" style=\"height: 30.00pt;\"\u003e\n\u003ctd class=\"et3\" height=\"40\" width=\"135\" style=\"height: 30.00pt; width: 101.25pt;\"\u003eFor BMW\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"112\" style=\"width: 84.00pt;\"\u003eF32 \/ F33 \/ F36\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"128\" style=\"width: 96.00pt;\"\u003e2017–2020\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"144\" style=\"width: 108.00pt;\"\u003e430i \/ 430i xDrive \/ Gran Coupe\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"150\" style=\"width: 112.50pt;\"\u003e2.0L B46 Turbo I4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"40\" style=\"height: 30.00pt;\"\u003e\n\u003ctd class=\"et3\" height=\"40\" width=\"135\" style=\"height: 30.00pt; width: 101.25pt;\"\u003eFor BMW\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"112\" style=\"width: 84.00pt;\"\u003eG22 \/ G23 \/ G26\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"128\" style=\"width: 96.00pt;\"\u003e2021–Present\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"144\" style=\"width: 108.00pt;\"\u003e430i \/ 430i xDrive \/ Gran Coupe\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"150\" style=\"width: 112.50pt;\"\u003e2.0L B46 Turbo I4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"40\" style=\"height: 30.00pt;\"\u003e\n\u003ctd class=\"et3\" height=\"40\" width=\"135\" style=\"height: 30.00pt; width: 101.25pt;\"\u003eFor BMW\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"112\" style=\"width: 84.00pt;\"\u003eG30\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"128\" style=\"width: 96.00pt;\"\u003e2017–2023\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"144\" style=\"width: 108.00pt;\"\u003e530i \/ 530i xDrive \/ 530e\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"150\" style=\"width: 112.50pt;\"\u003e2.0L B46 Turbo I4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"40\" style=\"height: 30.00pt;\"\u003e\n\u003ctd class=\"et3\" height=\"40\" width=\"135\" style=\"height: 30.00pt; width: 101.25pt;\"\u003eFor BMW\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"112\" style=\"width: 84.00pt;\"\u003eG29\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"128\" style=\"width: 96.00pt;\"\u003e2019–Present\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"144\" style=\"width: 108.00pt;\"\u003eZ4 sDrive30i\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"150\" style=\"width: 112.50pt;\"\u003e2.0L B46 Turbo I4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"40\" style=\"height: 30.00pt;\"\u003e\n\u003ctd class=\"et3\" height=\"40\" width=\"135\" style=\"height: 30.00pt; width: 101.25pt;\"\u003eFor Toyota\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"112\" style=\"width: 84.00pt;\"\u003eA90 \/ DB82\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"128\" style=\"width: 96.00pt;\"\u003e2020–Present\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"144\" style=\"width: 108.00pt;\"\u003eGR Supra 2.0T\u003c\/td\u003e\n\u003ctd class=\"et4\" width=\"150\" style=\"width: 112.50pt;\"\u003e2.0L B46 Turbo I4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eKEY FEATURES\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInnovative 3-Bung Configuration (US-Spec Friendly): \u003c\/strong\u003eSpecially engineered with 3 pre-welded O2 sensor bungs (M18x1.5). This provides a perfect, hassle-free match for North American \/ US-spec B46 engines without requiring any custom welding or midpipe modifications. It allows tuners to plug in a wideband AFR gauge directly, saving significant workshop fabrication costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Interlocked Flex Section:\u003c\/strong\u003e Features a high-density, premium stainless steel braided flex pipe. It efficiently absorbs massive engine vibrations and manages extreme thermal expansion, effectively preventing downstream exhaust cracking and dramatically extending the lifespan of the entire setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision CNC-Machined V-Band Connection:\u003c\/strong\u003e Equipped with a warp-free, thick heavy-duty V-band flange that ensures a 100% airtight and leak-free seal with the factory turbocharger. It guarantees factory-like seating and a fast, straightforward direct bolt-on installation with no extra modification needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium T304 Stainless Steel Construction:\u003c\/strong\u003e Constructed from top-tier, mandrel-bent T304 stainless steel tubing with a uniform wall thickness. Combined with flawless, back-purged TIG welds, this downpipe is completely anti-rust, anti-crack, and thoroughly track-tested to withstand extreme track racing temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized High-Flow \u0026amp; Aggressive Sound:\u003c\/strong\u003e Designed as a smooth, catless straight-through internal architecture. By optimizing exhaust gas velocity and drastically reducing backpressure, it unlocks maximum horsepower, enhances linear throttle response, and delivers a deep, aggressive exhaust note.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgraded Interlock Inner Liner Section:\u003c\/strong\u003e\" Unlike cheap mesh-only flex pipes that collapse under high pressure, our heavy-duty interlocked inner liner ensures uninterrupted exhaust gas flow and maximum resistance to high turbo-back exhaust velocities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 1\/8\" NPT EGT Bung:\u003c\/strong\u003e\" The 4th smaller port is precisely threaded to 1\/8\" NPT, making it instantly compatible with 99% of aftermarket Exhaust Gas Temperature (EGT) sensor probes and racing gauges on the market.\u003c\/li\u003e\n\u003c\/ul\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\u003eProduct Type\u003c\/strong\u003e: Performance Catless Exhaust Downpipe\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Material\u003c\/strong\u003e: Stainless Steel\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface Treatment\u003c\/strong\u003e: Brushed stainless steel finish\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlex Joint Type\u003c\/strong\u003e: Woven mesh flex pipe\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Interface\u003c\/strong\u003e: Pre-welded O2 sensor bungs\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Method\u003c\/strong\u003e: Flange-to-flange connection\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWelding Type\u003c\/strong\u003e: TIG tungsten-inert-gas full penetration welding\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplicable Engine\u003c\/strong\u003e: B46 2.0L Turbo\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Type\u003c\/strong\u003e: OEM direct bolt-on replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\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\u003cdiv\u003e1 x Exhaust downpipe assembly with flex pipe\u003c\/div\u003e\n\u003cdiv\u003eFull Set OEM Matching Installation Clamps \u0026amp; Hardware Kit\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Wanmax Racing","offers":[{"title":"Default Title","offer_id":55145885991284,"sku":"BMW B46 头段(拉丝勾网款 )","price":186.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/7244\/2740\/files\/CatlessDownpipeDirectFitforUSSpecBMWB46F30G20330i430iZ4Supra2.0LTurbo_1_4.jpg?v=1786587085","url":"https:\/\/wanmaxracing.com\/products\/high-flow-racing-downpipe-with-1-8-npt-egt-bung-fit-for-bmw-b46-g20-g30-f32-230i-330i-430i-performance-upgrade","provider":"Wanmax Racing","version":"1.0","type":"link"}