{"product_id":"bmw-b58-gen-2-g-series-m340i-m440i-m240i-stainless-steel-valved-exhaust","title":"BMW B58 Gen 2 G-Series M340i\/M440i\/M240i Stainless Steel Valved Exhaust","description":"\u003ch2\u003eBMW B58 Gen 2 G-Series M340i\/M440i\/M240i Stainless Steel Valved Exhaust\u003c\/h2\u003e\n\u003cp\u003eTransform the sound and character of your BMW B58TU-powered G-Series platform with this Stainless Steel Valved Exhaust System — engineered to deliver improved exhaust flow, enhanced turbo acoustics, and the perfect balance between refined daily driving and aggressive performance.\u003c\/p\u003e\n\u003cp\u003eDesigned specifically for the 3.0L Turbocharged B58 Gen 2 (B58TU) engine, this valved exhaust system replaces the restrictive factory rear section with a free-flowing design that allows the engine to breathe more efficiently. The result is improved throttle response, increased exhaust character, and an unmistakable straight-six soundtrack.\u003c\/p\u003e\n\u003cp\u003eFeaturing integrated valve control, this system offers the best of both worlds. Keep the valves closed for a refined OEM-like driving experience, or open them to unleash a deeper, louder, and more aggressive exhaust note with enhanced turbo spool and crackles under acceleration.\u003c\/p\u003e\n\u003cp\u003eConstructed from premium T304 stainless steel and precision TIG welded throughout, this exhaust system is built to withstand extreme temperatures and demanding driving conditions while maintaining OEM-style fitment and long-term reliability.\u003c\/p\u003e\n\u003cp\u003eWhether you're running a stock vehicle or a fully tuned setup, this Stainless Steel Valved Exhaust System delivers the perfect combination of sound, performance, and everyday usability.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003ch3\u003eIntegrated Valved Exhaust Design\u003c\/h3\u003e\n\u003cp\u003eSwitch between a refined daily-driving experience and an aggressive performance exhaust note at the touch of a button.\u003c\/p\u003e\n\u003ch3\u003ePremium T304 Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eManufactured from corrosion-resistant stainless steel for exceptional durability and long-term reliability.\u003c\/p\u003e\n\u003ch3\u003eImproved Exhaust Flow\u003c\/h3\u003e\n\u003cp\u003eReduces exhaust restrictions and allows the B58TU engine to breathe more efficiently.\u003c\/p\u003e\n\u003ch3\u003eSignature B58 Sound Enhancement\u003c\/h3\u003e\n\u003cp\u003eProduces a deeper, smoother, and more aggressive straight-six exhaust note.\u003c\/p\u003e\n\u003ch3\u003ePrecision TIG Welded\u003c\/h3\u003e\n\u003cp\u003eHigh-quality welds engineered to withstand extreme temperatures and demanding performance applications.\u003c\/p\u003e\n\u003ch3\u003eMandrel-Bent Tubing\u003c\/h3\u003e\n\u003cp\u003eMaintains unrestricted exhaust flow and consistent pipe diameter throughout the system.\u003c\/p\u003e\n\u003ch3\u003eDirect Bolt-On Fitment\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for BMW B58 Gen 2 (B58TU) G-Series vehicles using factory mounting locations.\u003c\/p\u003e\n\u003ch2\u003ePerformance Benefits\u003c\/h2\u003e\n\u003cp\u003e• Increased exhaust flow efficiency\u003cbr\u003e• Sharper throttle response\u003cbr\u003e• Enhanced turbo spool acoustics\u003cbr\u003e• Deeper and more aggressive exhaust tone\u003cbr\u003e• Reduced exhaust restriction\u003cbr\u003e• Ideal supporting modification for tuned and high-performance builds\u003cbr\u003e• Maintains excellent daily drivability through valve control\u003c\/p\u003e\n\u003cp\u003ePerformance gains may vary depending on ECU calibration and supporting modifications.\u003c\/p\u003e\n\u003ch2\u003eSound Characteristics\u003c\/h2\u003e\n\u003ch3\u003eValves Closed\u003c\/h3\u003e\n\u003cp\u003e• Refined OEM+ exhaust note\u003cbr\u003e• Minimal drone for comfortable daily driving\u003cbr\u003e• Smooth and subtle sound characteristics\u003c\/p\u003e\n\u003ch3\u003eValves Open\u003c\/h3\u003e\n\u003cp\u003e• Deeper and more aggressive exhaust tone\u003cbr\u003e• Increased turbo spool and whistle acoustics\u003cbr\u003e• Enhanced crackles and pops (when tuned)\u003cbr\u003e• Greater overall exhaust volume\u003cbr\u003e• More pronounced cold starts\u003cbr\u003e• Signature B58 straight-six sound throughout the rev range\u003c\/p\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003eBMW G20\/G21 M340i xDrive (2019+)\u003cbr\u003eBMW G22\/G23\/G26 M440i xDrive (2021+)\u003cbr\u003eBMW G42 M240i xDrive (2022+)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e3.0L Turbocharged B58 Gen 2 (B58TU) Engine\u003c\/p\u003e\n\u003ch2\u003ePlease Note\u003c\/h2\u003e\n\u003cp\u003eProfessional installation is strongly recommended.\u003c\/p\u003e\n\u003cp\u003eExhaust sound characteristics may vary depending on supporting modifications such as downpipes and ECU tuning.\u003c\/p\u003e\n\u003cp\u003eVehicles equipped with OPF\/GPF emissions systems may require alternative configurations.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose Proven Performance Parts\u003c\/h2\u003e\n\u003cp\u003eWe specialise in high-performance parts for European vehicles — including Volkswagen GTI \u0026amp; R models, Audi S\/RS platforms, and BMW M vehicles. Every product we offer is carefully selected for its quality, fitment, and real-world performance — tested by enthusiasts, for enthusiasts.\u003c\/p\u003e","brand":"Proven Performance Parts","offers":[{"title":"Default Title","offer_id":52382373118234,"sku":null,"price":2255.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/1177\/4490\/files\/113_990dc563-7e53-40da-8b4f-2af6b4c6dc70.png?v=1782135628","url":"https:\/\/provenperformanceparts.com.au\/products\/bmw-b58-gen-2-g-series-m340i-m440i-m240i-stainless-steel-valved-exhaust","provider":"Proven Performance Parts","version":"1.0","type":"link"}