{"product_id":"n20-stage-1-turbocharger-upgrade-kit","title":"N20 Stage 1 Turbocharger Upgrade Kit","description":"The Turner Motorsport N20 Turbocharger Stage 1 Upgrade Kit is an OEM-developed turbo upgrade for BMW 228i, 320i, 328i, 428i, 528i, X1, X3, and X4 models equipped with the N20 4-cylinder turbo engine. This kit utilizes a Mitsubishi TD04L6R-04H*20TKS3-6T turbocharger, which is a direct replacement for BMW part number 11657642469 and is fully interchangeable with the stock unit. The turbo features upgraded internals with a machined billet compressor wheel for increased strength, lighter weight, and improved durability compared to the stock cast piece. Its larger exducer (58mm vs. stock 56mm) and inducer (47mm vs. stock 42mm) allow it to flow significantly more air, increasing peak horsepower from 245HP to an impressive 300HP. This upgrade is designed to provide an easy 20% power increase across the entire rev range, even without additional boost, with more dramatic gains achievable with tuning.\n\nThe kit is a complete 100% bolt-on replacement, including the manifold, integrated turbo, and a new electronic wastegate assembly, ensuring an easy installation. Unlike some competitors, this MHI big turbo solution requires no core or core charge. For optimal performance and longevity, BimmerWorld recommends a minimum of 5W30 oil, with 5W40 or 10W40 suggested for summer and performance driving. An engine oil change is recommended after a 1,000-mile turbo break-in period.\n\nSpecific fitment notes apply for pre-2013 cars with a pneumatic wastegate (PWG), requiring the transfer of the original PWG and actuator arm, with a simple modification to drill the wastegate pot arm hole to 10mm. The kit includes the upgraded Mitsubishi turbocharger, installation hardware, and is an upgrade for BMW Part # 11657642469. It fits a wide range of BMW models including the 2 Series (F22\/F23), 3 Series (F30\/F31\/F34), 4 Series (F32\/F33\/F36), 5 Series (F10\/F11), X1 (E84), X3 (F25), X4 (F26), and Z4 (E89) with the N20 2.0L engine.","brand":"Turner Motorsport","offers":[{"title":"Default Title","offer_id":52689482940728,"sku":"TD04L6R-04H*20TKS3-6T","price":2184.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687752732.jpg?v=1784906988","url":"https:\/\/store.motormia.co\/products\/n20-stage-1-turbocharger-upgrade-kit","provider":"MOTORMIA","version":"1.0","type":"link"}