{"product_id":"bmw-b46-b48-spool-stainless-steel-race-downpipe","title":"BMW B46 \u0026 B48 Spool Stainless Steel Race Downpipe","description":"\u003cp\u003eThe Spool B46\/B48 race downpipe is one of the best value upgrades for turbocharged BMW 30i models, cutting backpressure for faster boost and more power with a tune.\u003c\/p\u003e\u003ch2\u003eWhy you need it\u003c\/h2\u003e\u003cp\u003eReducing backpressure helps the turbo build boost more efficiently and eases the load on it. With a proper tune, expect gains of 18–23 hp and a more aggressive exhaust sound. It works with the stock cat-back and with aftermarket exhausts.\u003c\/p\u003e\u003ch2\u003eFits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBMW 230i and xDrive (2016–2024)\u003c\/li\u003e\n\u003cli\u003eBMW 320i, 330i and xDrive (2016–2024)\u003c\/li\u003e\n\u003cli\u003eBMW 430i and xDrive (2016–2024)\u003c\/li\u003e\n\u003cli\u003eBMW 530i and xDrive (2017–2024)\u003c\/li\u003e\n\u003cli\u003eBMW X1 sDrive28i \/ xDrive28i (2016–2024)\u003c\/li\u003e\n\u003cli\u003eBMW X2 sDrive28i \/ xDrive28i (2018–2024)\u003c\/li\u003e\n\u003cli\u003eBMW X3 sDrive30i \/ xDrive30i (2018–2024)\u003c\/li\u003e\n\u003cli\u003eBMW X4 xDrive30i (2018–2024)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRobotic TIG welding in an argon chamber for consistent welds\u003c\/li\u003e\n\u003cli\u003eSmooth radius bends for better flow and turbo efficiency\u003c\/li\u003e\n\u003cli\u003eFits LHD and RHD models with no modification\u003c\/li\u003e\n\u003cli\u003eWorks with the stock cat-back and aftermarket systems\u003c\/li\u003e\n\u003cli\u003e18–23 hp gains with a proper tune\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eGood to know\u003c\/h2\u003e\u003cp\u003eChoose the B46 or B48 version at checkout. Many US owners assume they have a B48, but US-market 30i models use the B46, so confirm your engine with your VIN before ordering. A tune is needed to see the power gains. This downpipe replaces emissions-related equipment. Intended for off-road and competition use only. Not legal for use on public roads in many areas. Professional installation is recommended.\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"B46","offer_id":46564522655829,"sku":"SP-B46-CDP","price":259.99,"currency_code":"USD","in_stock":true},{"title":"B48","offer_id":46564522688597,"sku":"SP-B48-CDP","price":259.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/9769\/8389\/files\/spool_b46_downpipe.jpg?v=1793250863","url":"https:\/\/www.wrenchhaususa.com\/de\/products\/bmw-b46-b48-spool-stainless-steel-race-downpipe","provider":"Wrench Haus","version":"1.0","type":"link"}