{"title":"BMW B58 Performance Parts","description":"\u003ch2\u003eBMW B58 Performance Parts: 900 HP Turbo Systems \u0026amp; High-Flow Downpipes\u003c\/h2\u003e\u003cp\u003eThe BMW B58 is the 3.0-litre turbocharged inline-six that sits at the top of BMW's non-M performance range. It powers the M140i, M240i, M340i and M440i, the X3 M40i and Z4 M40i — and, famously, the Toyota GR Supra A90 3.0. With a closed-deck block, a forged crankshaft and generous cooling from the factory, the B58 has earned a reputation as one of the strongest six-cylinder tuning platforms of its generation. It is an engine that rewards a properly planned build.\u003c\/p\u003e\u003ch3\u003eThe B58 tuning path, explained\u003c\/h3\u003e\u003cp\u003eThe staged approach applies to the B58 just as it does to any modern turbo engine. Stage 1 is a software remap within the limits of the stock turbocharger and exhaust. Stage 2 introduces the breathing hardware — above all a high-flow downpipe, often alongside an upgraded intercooler — so a more aggressive calibration has the airflow it needs. Stage 3 replaces the factory turbocharger entirely, which is where the B58's famously strong bottom end lets it operate in territory few stock-block engines can reach. The key at every stage is matching hardware and software: neither works to its potential without the other.\u003c\/p\u003e\u003ch3\u003eWhat RO34 stocks for the B58\u003c\/h3\u003e\u003cp\u003eOur B58 collection focuses on the components that define serious Stage 2 and Stage 3 builds:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e900 HP performance turbo systems\u003c\/strong\u003e — including a system for the B58 Gen 2 and Toyota Supra A90, and a Garrett G30-900 based turbo upgrade for B58 Gen 1 engines and the Supra A90.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat-shielded high-flow downpipes\u003c\/strong\u003e — the essential Stage 2 exhaust component for the M140i, M340i, 440i and Supra, combining maximum flow with thermal protection for surrounding components in the tight B58 engine bay.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eEverything here is chosen with an OEM-grade fitment focus — parts engineered for the specific chassis and engine generation they list, not universal approximations.\u003c\/p\u003e\u003ch3\u003eGen 1 or Gen 2? Check before you buy\u003c\/h3\u003e\u003cp\u003eThe B58 exists in two distinct generations with meaningful hardware differences, and BMW fitted it across many chassis. If you are unsure which generation your car runs or whether a part matches your exact model, send us your VIN via our contact page and we will confirm fitment before you place the order.\u003c\/p\u003e\u003ch3\u003eShipping and returns\u003c\/h3\u003e\u003cp\u003eEvery order ships from Spain within 24–48 hours with DHL, UPS or FedEx, and all purchases are covered by a 30-day return policy.\u003c\/p\u003e\u003ch2\u003eBMW B58 FAQ\u003c\/h2\u003e\u003ch3\u003eIs a downpipe enough for Stage 2?\u003c\/h3\u003e\u003cp\u003eOn the B58, a high-flow downpipe is the core Stage 2 hardware, and it must be paired with matching Stage 2 software to deliver its benefit. Many owners add an upgraded intercooler at the same time to keep charge temperatures consistent under sustained load.\u003c\/p\u003e\u003ch3\u003eWill these parts fit my exact model?\u003c\/h3\u003e\u003cp\u003eEach listing specifies the supported chassis and B58 generation (Gen 1 or Gen 2). Because the differences between generations matter, we recommend sending us your VIN before ordering — we will verify compatibility with your exact vehicle before you buy.\u003c\/p\u003e\u003ch3\u003eDo you ship outside Spain?\u003c\/h3\u003e\u003cp\u003eYes. Orders dispatch from Spain within 24–48 hours via DHL, UPS or FedEx, with delivery across Europe and beyond, and every order includes our 30-day return policy.\u003c\/p\u003e","products":[{"product_id":"r2p-rp900-b58-gen2-performance-turbo-system","title":"R2P Performance Turbo System (900 HP) – Extreme Power for BMW B58 Gen 2 and Toyota Supra A90","description":"\u003cp\u003eThe \u003cstrong\u003eR2P RP900\u003c\/strong\u003e is a competition turbocharger system designed specifically for \u003cstrong\u003eBMW B58 Gen 2\u003c\/strong\u003e and \u003cstrong\u003eToyota Supra A90\u003c\/strong\u003e engines. Based on the \u003cstrong\u003eGarrett G30-900\u003c\/strong\u003e core, this turbo is designed for extreme builds aiming to reach \u003cstrong\u003eup to 900 HP\u003c\/strong\u003e with reliability and instant response. Ideal for drag racing, track and high-performance projects where every tenth counts.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual ceramic ball bearings (CHRA)\u003c\/strong\u003e – Minimize friction and improve turbo response, virtually eliminating lag.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGarrett G30-900 core\u003c\/strong\u003e – Competition technology with proven reliability in extreme environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity of up to 900 HP\u003c\/strong\u003e – Supports high-level builds without compromising thermal or mechanical stability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-precision VSR balancing\u003c\/strong\u003e – Guarantees smooth operation and extends the service life of the assembly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptimized turbine geometry\u003c\/strong\u003e – Reduces back pressure compared to the OEM turbo, allowing greater flow at high RPM.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompressor wheel (Inducer\/Exducer):\u003c\/strong\u003e 62 mm \/ 76 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTurbine wheel (Inducer\/Exducer):\u003c\/strong\u003e 60 mm \/ 55 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearing type:\u003c\/strong\u003e Dual ceramic ball\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 700 – 900 HP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTechnology base:\u003c\/strong\u003e Garrett G30-900\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDesigned for the \u003cstrong\u003eBMW B58 Gen 2 (B58B30O1 \/ TU)\u003c\/strong\u003e platform:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBMW:\u003c\/strong\u003e M340i\/M440i (G20\/G22), X3 M40i\/X4 M40i (G01\/G02), Z4 M40i (G29)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eToyota:\u003c\/strong\u003e GR Supra A90 with the 3.0 Gen 2 engine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eYears:\u003c\/strong\u003e 2019 onwards (depending on market)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReal-world performance\u003c\/h3\u003e\n\u003cp\u003eThe B58's OEM turbo falls short on flow at high revs. The \u003cstrong\u003eRP900\u003c\/strong\u003e resolves this bottleneck with a larger-diameter turbine and ceramic bearings that allow it to come on boost sooner, widening the usable power band on both street and track. With pump gasoline it is possible to reach 600-700 HP; with E85 or methanol, it approaches the 900 HP limit.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs it a direct (Plug \u0026amp; Play) installation?\u003c\/strong\u003e\u003cbr\u003eNo. It requires modifications to the lubrication and cooling lines, manifold and downpipe. It is not compatible with the OEM position without adaptations.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs an ECU remap mandatory?\u003c\/strong\u003e\u003cbr\u003eYes, absolutely. Without adapted engine management, the engine will not run safely or take advantage of the turbo's potential.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat power can I expect?\u003c\/strong\u003e\u003cbr\u003eIt depends on the fuel and the engine's internal components. With 98 octane gasoline, between 600-700 HP. With E85 or methanol and proper preparation, up to 900 HP.\u003c\/p\u003e\n\n\u003ch3\u003eShipping and warranty\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eStock available\u003c\/li\u003e\n  \u003cli\u003eFast, insured shipping\u003c\/li\u003e\n  \u003cli\u003eCompatibility guarantee with BMW B58 Gen 2 and Toyota Supra A90\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"R2P","offers":[{"title":"Default Title","offer_id":51808177619226,"sku":null,"price":3245.05,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0964\/9324\/0602\/files\/69199f47865b0_r2turbo-pr900-b58-gen2-performance-turbo-system-r2t-b58g2-pr900-32020a16-1280x1280_fill.webp?v=1773170880"},{"product_id":"r2p-bmw-b58-heat-insulation-downpipe","title":"R2P Heat-Shielded Downpipe for BMW B58 (High Flow) – Performance and Protection for M140i, M340i, 440i and Supra","description":"\u003cp\u003eThe \u003cstrong\u003eR2P Downpipe with thermal insulation\u003c\/strong\u003e is a high-performance part designed for BMW B58 engines. Its purpose is to optimize heat management and improve exhaust gas flow, allowing the turbocharger to work more efficiently. It improves power and torque by reducing back pressure, while its integrated heat shield protects the engine bay from extreme temperatures. Ideal for Stage 2 builds and track use.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull thermal insulation:\u003c\/strong\u003e Drastically reduces the temperature in the engine bay, protecting sensors, hoses and plastic components from radiant heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-flow design:\u003c\/strong\u003e Minimizes exhaust restrictions, improving throttle response and providing a notable power gain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-grade stainless steel construction:\u003c\/strong\u003e Resistant to corrosion and the most demanding sporty driving conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized sound:\u003c\/strong\u003e Provides a deeper, more aggressive tone without compromising the elegance of the B58 engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect installation (Plug \u0026amp; Play):\u003c\/strong\u003e Direct replacement with no permanent structural modifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e R2P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-grade stainless steel with insulating coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible engine:\u003c\/strong\u003e BMW B58 (3.0L Inline-6 Turbo, B58B30)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation type:\u003c\/strong\u003e Direct replacement (Plug \u0026amp; Play)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Aerospace-grade thermal insulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible models:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW 1 Series (M140i F20\/F21)\u003c\/li\u003e\n\u003cli\u003eBMW 2 Series (M240i F22\/F23)\u003c\/li\u003e\n\u003cli\u003eBMW 3 Series (340i F30\/F31\/F34 and M340i G20)\u003c\/li\u003e\n\u003cli\u003eBMW 4 Series (440i F32\/F33\/F36)\u003c\/li\u003e\n\u003cli\u003eBMW 5 Series (540i G30\/G31)\u003c\/li\u003e\n\u003cli\u003eBMW Z4 (G29 M40i)\u003c\/li\u003e\n\u003cli\u003eToyota GR Supra (A90\/A91 with B58 engine)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eYears:\u003c\/strong\u003e 2015 onwards\u003c\/p\u003e\n\n\u003ch3\u003eAdvantages over other options\u003c\/h3\u003e\n\u003cp\u003eThe OEM downpipe includes restrictive catalytic converters and lacks efficient thermal insulation. The R2P version allows much faster gas evacuation. Unlike budget alternatives without insulation, the R2P prevents residual heat from degrading surrounding components, keeping the intake air density lower and more stable.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs it necessary to remap the ECU?\u003c\/strong\u003e Yes, to avoid the check engine light (CEL) and maximize power gains, a Stage 2 remap is recommended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow does the thermal insulation help?\u003c\/strong\u003e It keeps heat inside the exhaust, which increases gas speed and protects sensitive engine parts against overheating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs it compatible with the stock exhaust?\u003c\/strong\u003e Yes, it is designed to fit perfectly with the original exhaust system or compatible aftermarket systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping and warranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn stock:\u003c\/strong\u003e Immediate shipping available.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast shipping:\u003c\/strong\u003e Secure delivery with tracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility guarantee:\u003c\/strong\u003e Verified for B58 engines.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"R2P","offers":[{"title":"Default Title","offer_id":51808178045210,"sku":null,"price":350.15,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0964\/9324\/0602\/files\/68fa34c66040d_ram2-project-bmw-b58-isi-yalitimli-downpipe-5efd7073-1280x1280_fill.webp?v=1773170892"},{"product_id":"r2p-rp900-b58-gen1-performance-turbo-system","title":"R2P High-Performance Turbo (900 HP, Garrett G30-900) – Power Upgrade for BMW B58 Gen 1 and Toyota Supra A90","description":"\u003cp\u003eThe R2P RP900 is a high-performance turbocharger system designed for first-generation BMW B58 engines. Equipped with a Garrett G30-900 core and dual ceramic ball bearings, this turbo can reach up to 900 HP with virtually instant throttle response. It is the ideal choice for those seeking aggressive street, drag racing, or competition builds.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual ceramic ball bearings:\u003c\/strong\u003e reduce internal friction, accelerate spool, and extend the assembly's service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGarrett G30-900 core:\u003c\/strong\u003e industry-benchmark technology for airflow capable of generating up to 900 HP.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-precision VSR balancing:\u003c\/strong\u003e guarantees stable, quiet operation even at maximum RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized turbine geometry:\u003c\/strong\u003e minimizes turbo lag and maximizes torque across the entire RPM range.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower range:\u003c\/strong\u003e 700 – 900 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressor (Inducer\/Exducer):\u003c\/strong\u003e 62 mm \/ 76 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurbine (Inducer\/Exducer):\u003c\/strong\u003e 60 mm \/ 55 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter cartridge (CHRA):\u003c\/strong\u003e dual ceramic ball bearings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase technology:\u003c\/strong\u003e Garrett G30-900 Core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing:\u003c\/strong\u003e high-precision assembly with VSR balancing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for the BMW B58 Gen 1 platform:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModels:\u003c\/strong\u003e BMW 340i\/440i (F30\/F32\/F36), BMW M240i (F22), BMW 540i (G30), Toyota Supra A90 (GR Supra 3.0)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngines:\u003c\/strong\u003e B58B30 (Gen 1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYears:\u003c\/strong\u003e check according to chassis variant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOEM references\u003c\/h3\u003e\n\u003cp\u003eReplaces and improves upon the original turbo systems of the B58B30 platform for high-performance applications.\u003c\/p\u003e\n\n\u003ch3\u003eWhy choose the R2P RP900?\u003c\/h3\u003e\n\u003cp\u003eUnlike the original (OEM) turbo, which loses efficiency at high RPM, the RP900 maintains a rising, stable power curve. Compared to cheaper alternatives that use bronze bearings, our ceramic bearings drastically reduce internal friction, offer greater longevity, and allow much earlier turbo spool-up.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes it require additional modifications?\u003c\/strong\u003e Yes, to reach the maximum potential of 900 HP, engine management (reprogramming), fuel system upgrades, and exhaust improvements are required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs it suitable for daily use?\u003c\/strong\u003e Thanks to its bearing technology, the car maintains excellent drivability at low revs, making it perfectly usable on the street.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo I need professional installation?\u003c\/strong\u003e Absolutely yes; this is a high-precision component that requires advanced mechanical knowledge.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping and warranty\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIn stock!\u003c\/strong\u003e Fast and secure shipping. Compatibility guarantee for B58 Gen 1 engines.\u003c\/p\u003e","brand":"R2P","offers":[{"title":"Default Title","offer_id":51820830228762,"sku":null,"price":3143.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0964\/9324\/0602\/files\/6918679679fc0_r2turbo-rp900-b58-gen1-performance-turbo-system-r2t-b58g1-rp900-75af645f-1280x1280_fill.webp?v=1773335687"}],"url":"https:\/\/www.ro34.com\/collections\/bmw-b58-performance-parts.oembed","provider":"ro34","version":"1.0","type":"link"}