{"product_id":"cnc-machined-b58-gen-2-intake-manifold-for-toyota-a90-supra-for-bmw-g29-z4-40i-g42-m240i-g20-m340i-g22-m440i","title":"Semi‑Cast B58 Gen 2 Intake Manifold for Toyota A90 Supra for BMW G29 Z4 40i G42 M240i G20 M340i G22 M440i","description":"\u003cdiv\u003e\n\u003ch3\u003eDESCRIPTION\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cstrong\u003eUpgrade Airflow, Lower IATs \u0026amp; Support High-Horsepower Tuning for B58TU Gen2 3.0L Turbo Models.\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eThis semi-cast intake manifold is designed as a direct performance upgrade for B58TU Gen2 engines. It combines optimized internal air path geometry with an integrated high-density water-to-air intercooler core, helping reduce intake air temperatures under hard driving and minimize heat soak. The included CNC billet fuel rail supports 6-port auxiliary fueling readiness, making it suitable for Stage 2+, E85, race gas, and higher-boost builds.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eBuilt from A356-T6 cast aluminum with precision CNC-machined sealing surfaces, this manifold is engineered for boost stability and leak-free fitment. It replaces the factory plastic-style manifold with a more rigid metal structure, while retaining original sensor locations and factory mounting points for a cleaner bolt-on installation.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eVEHICLE FITMENT\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFitment Guarantee: 100% Bolt-on installation. No modifications, custom brackets, or engine bay cutting required. Fits perfectly with factory mounting points and cooling lines.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eToyota GR Supra\u003c\/strong\u003e\u003cbr\u003e2020 – Present Toyota GR Supra 3.0L (A90 \/ A91 Chassis) \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW 3 Series (G20 Chassis)\u003c\/strong\u003e\u003cbr\u003e2019 – Present BMW M340i (3.0L L6 Turbo) \u003cbr\u003e2019 – Present BMW M340i xDrive (3.0L L6 Turbo)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW 2 Series (G42 Chassis)\u003c\/strong\u003e\u003cbr\u003e2021 – Present BMW M240i (3.0L L6 Turbo)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW 4 Series (G22 \/ G23 \/ G26 Chassis)\u003c\/strong\u003e\u003cbr\u003e2020 – Present BMW M440i (Coupe \/ Convertible \/ Gran Coupe)\u003cbr\u003e2020 – Present BMW M440i xDrive (Coupe \/ Convertible \/ Gran Coupe)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW Z4 (G29 Chassis)\u003c\/strong\u003e\u003cbr\u003e2019 – Present BMW Z4 M40i (3.0L L6 Turbo) \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW X3 \u0026amp; X4 (G01 \/ G02 Chassis — LCI \/ High-Output Models)\u003c\/strong\u003e\u003cbr\u003e2020 – 2024 BMW X3 M40i (382hp \/ 374hp B58TU1 Versions)\u003cbr\u003e2020 – 2024 BMW X4 M40i (382hp \/ 374hp B58TU1 Versions)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW 5 Series \u0026amp; 7 Series (G30 \/ G11 Chassis — LCI \/ Late Models)\u003c\/strong\u003e\u003cbr\u003e2020 – 2023 BMW 540i \/ 540i xDrive (Models equipped with B58TU1 engine)\u003cbr\u003e2020 – 2022 BMW 740i \/ 740Li \/ 740iX (Models equipped with B58TU1 engine)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eNOT COMPATIBLE WITH: Gen 1 B58 engines (e.g., F30 340i, F22 M240i, F20 M140i).\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eNOT COMPATIBLE WITH: Gen 3 B58TU2 engines (Latest 2025+ models utilizing the factory dual-injection port configuration).\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eKEY FEATURES\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Semi-Cast A356-T6 Aluminum Construction:\u003c\/strong\u003e Gravity-cast main plenum with smooth internal airflow geometry; critical flanges and sealing surfaces are fully CNC-machined for stable fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated High-Density Water-to-Air Intercooler Core:\u003c\/strong\u003e Maximizes surface contact area inside the manifold to help lower intake air temperatures and reduce heat soak during aggressive driving.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6-Port Auxiliary Fueling Ready:\u003c\/strong\u003e Pre-machined secondary injector ports and matching billet fuel rail support E85, race gas, water-methanol injection, and high-horsepower tuning setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Boost Rigid Metal Structure:\u003c\/strong\u003e Replaces factory plastic manifold with a stronger aluminum design, helping withstand higher boost pressure without flexing or cracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetains Factory Sensor \u0026amp; Mounting Layout:\u003c\/strong\u003e Designed to work with original TMAP sensors, vacuum lines, and mounting points for a more straightforward installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt-On Installation with Included Hardware:\u003c\/strong\u003e Comes with manifold gasket, silicone coolant hoses, fuel rail brackets, o-rings, clamps, and full installation hardware kit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\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\u003eEngine Compatibility:\u003c\/strong\u003e B58TU Gen2 (Technical Update \/ Gen 2 Platform)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManifold Material:\u003c\/strong\u003e Premium A356-T6 Automotive Grade Cast Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange \u0026amp; Rail Material:\u003c\/strong\u003e Aircraft-Grade 6061-T6 Solid Billet Aluminum (CNC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntercooler Type:\u003c\/strong\u003e Water-to-Air (High-Density Bar \u0026amp; Plate Core)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary Fueling:\u003c\/strong\u003e 6-Port Secondary Injection Included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurst Pressure:\u003c\/strong\u003e Tested up to 50 PSI \/ 3.5 Bar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Resistance:\u003c\/strong\u003e Up to 1100°F \/ 593°C without physical warping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment Layout:\u003c\/strong\u003e 100% Direct Bolt-On; retains all factory sensors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Standard:\u003c\/strong\u003e 100% Pressure-Tested \u0026amp; Leak-Tested before packing\u003c\/li\u003e\n\u003c\/ul\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\u003cul\u003e\n\u003cli\u003e1x High-Performance Semi-Cast Aluminum Integrated Intercooler Intake Manifold\u003c\/li\u003e\n\u003cli\u003e1x CNC-Machined Billet Fuel Rail for Auxiliary Port Injection\u003c\/li\u003e\n\u003cli\u003e1x High-Density Intake Manifold Flange Gasket\u003c\/li\u003e\n\u003cli\u003e2x Reinforced Silicone Coolant Hoses\u003c\/li\u003e\n\u003cli\u003e3x Fuel Vapor \/ Vacuum Line Hoses\u003c\/li\u003e\n\u003cli\u003e4x Fuel Rail Support Brackets \u0026amp; Adapters\u003c\/li\u003e\n\u003cli\u003e2x Fuel Rail End Plugs \/ Block-Off Caps\u003c\/li\u003e\n\u003cli\u003e6x Cylinder Head Intake Port Viton O-Rings\u003c\/li\u003e\n\u003cli\u003e6x Secondary Fuel Injector Sealing O-Rings\u003c\/li\u003e\n\u003cli\u003e14x Stainless Steel T-Bolt \u0026amp; Worm Gear Hose Clamps\u003c\/li\u003e\n\u003cli\u003e1x Full Installation Hardware Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eCustomization\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFactory Customization \u0026amp; B2B Wholesaler Policy (OEM\/ODM)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrivate Brand Laser Engraving (Logo Customization):\u003c\/strong\u003e We support precision laser etching of your company logo or custom serial numbers onto the CNC-machined billet surface of the manifold. (Low MOQ applies).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnodized Color Options: \u003c\/strong\u003eThe included fuel rail, block-off plugs, and mounting brackets can be ordered in multiple custom anodized color finishes (Black, Silver, Blue, Red, Gold) to blend with your brand styling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeutral \u0026amp; Bulk Packaging Options:\u003c\/strong\u003e We provide sturdy, plain brown-box neutral packaging with secure foam inserts for drop-shippers and regional distributors to obscure original manufacturer metrics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSample Order Protection: \u003c\/strong\u003eSample units are highly welcomed for local shop clearance tests, dyno verification, and fitment evaluation before finalizing large bulk container contracts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFREQUENTLY ASKED QUESTIONS\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cstrong\u003eQ1: What is the main structural advantage of a semi-cast manifold over a full billet manifold?\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eA: The semi-cast design balances performance and cost. Gravity casting allows smoother internal radius air paths that are difficult to replicate efficiently with full billet CNC milling. It offers similar boost handling and thermal capability at a more competitive price point.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cstrong\u003eQ2: Will this kit cause a Check Engine Light or sensor fault?\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eA: No. This manifold is designed around a direct-fit schematic. All factory sensors, including TMAP sensors and vacuum lines, connect back to original positions without modifying the factory wiring harness.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cstrong\u003eQ3: Do I need to use the 6-port auxiliary fuel rail immediately after install?\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eA: No. For basic Stage 1 or Stage 2 tunes running on factory direct injectors, the secondary ports can be blocked off using the included block-off caps. The auxiliary fueling ports are ready for future turbo upgrades, E85 setups, or higher-horsepower builds.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cstrong\u003eQ4: Are modifications required for the factory low-temperature cooling water loop？\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eA: No modifications are required. The kit includes pre-formed, reinforced multi-layer silicone cooling hoses designed to follow the original factory coolant routing lines.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Wanmax Racing","offers":[{"title":"Default Title","offer_id":55002632913268,"sku":null,"price":1130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/7244\/2740\/files\/ScreenShot_2026-07-22_144548_082.png?v=1784702991","url":"https:\/\/wanmaxracing.com\/products\/cnc-machined-b58-gen-2-intake-manifold-for-toyota-a90-supra-for-bmw-g29-z4-40i-g42-m240i-g20-m340i-g22-m440i","provider":"Wanmax Racing","version":"1.0","type":"link"}