{"product_id":"toyota-a90-mk5-supra-catless-downpipe","title":"Toyota A90 MK5 Supra Catless Downpipe","description":"\u003ch2\u003eToyota A90 MK5 Supra 3.0T B58 Catless Downpipe\u003c\/h2\u003e\n\u003cp\u003eUnlock the true performance potential of your Toyota GR Supra with this High-Performance Catless Downpipe, engineered to maximise exhaust flow, reduce turbocharger back pressure, and deliver substantial improvements in power, throttle response, and exhaust sound.\u003c\/p\u003e\n\u003cp\u003eDesigned specifically for the Toyota A90\/A91 MK5 Supra equipped with the BMW B58 3.0L turbocharged engine, this direct bolt-on downpipe replaces the highly restrictive factory catalytic converter with a free-flowing mandrel-bent stainless steel design. By significantly reducing exhaust restriction, the turbocharger can spool faster and operate more efficiently, resulting in increased horsepower, torque, and a much more aggressive exhaust note.\u003c\/p\u003e\n\u003cp\u003eManufactured from premium T304 stainless steel with precision TIG welding and CNC-machined flanges, this downpipe is built to withstand extreme temperatures while ensuring excellent durability, corrosion resistance, and an OEM-quality fit.\u003c\/p\u003e\n\u003cp\u003eWhether you're running a completely stock vehicle or building a high-performance Stage 2 setup, this Catless Downpipe is one of the most effective bolt-on performance upgrades available for the B58-powered Supra.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003ch3\u003eFree-Flowing Catless Design\u003c\/h3\u003e\n\u003cp\u003eEliminates the restrictive factory catalytic converter to maximise exhaust gas flow and significantly reduce back pressure.\u003c\/p\u003e\n\u003ch3\u003eIncreased Performance\u003c\/h3\u003e\n\u003cp\u003eImproves turbocharger efficiency for faster spool, increased horsepower, stronger torque delivery, and improved throttle response.\u003c\/p\u003e\n\u003ch3\u003ePremium T304 Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eManufactured from high-quality T304 stainless steel for exceptional strength, heat resistance, and corrosion protection.\u003c\/p\u003e\n\u003ch3\u003ePrecision TIG Welded\u003c\/h3\u003e\n\u003cp\u003eProfessionally TIG welded to ensure maximum durability and long-term reliability under demanding driving conditions.\u003c\/p\u003e\n\u003ch3\u003eCNC Machined Flanges\u003c\/h3\u003e\n\u003cp\u003ePrecision-machined flanges provide an accurate OEM-style fitment and reliable sealing.\u003c\/p\u003e\n\u003ch3\u003eDirect Bolt-On Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned as a direct replacement for the factory downpipe using the original mounting locations and factory oxygen sensor positions.\u003c\/p\u003e\n\u003ch2\u003ePerformance Benefits\u003c\/h2\u003e\n\u003ch3\u003eIncreased Horsepower \u0026amp; Torque\u003c\/h3\u003e\n\u003cp\u003eReducing exhaust restriction allows the turbocharger to operate more efficiently, providing noticeable power gains, particularly when combined with ECU tuning. Gains of around \u003cstrong\u003e20–25 horsepower with supporting tuning\u003c\/strong\u003e are commonly reported for quality B58 downpipes.\u003c\/p\u003e\n\u003ch3\u003eFaster Turbo Spool\u003c\/h3\u003e\n\u003cp\u003eLower exhaust back pressure allows the turbocharger to spool more quickly, improving acceleration and throttle response.\u003c\/p\u003e\n\u003ch3\u003eAggressive Exhaust Sound\u003c\/h3\u003e\n\u003cp\u003eProduces a significantly louder, deeper exhaust note with enhanced turbo whistle, sharper crackles, and a more aggressive overall tone compared to the factory downpipe.\u003c\/p\u003e\n\u003ch2\u003eSound Characteristics\u003c\/h2\u003e\n\u003cp\u003eCompared to the factory downpipe, this catless system delivers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eNoticeably louder exhaust volume\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMore pronounced turbo spool and induction noise\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSharper pops and crackles (vehicle tune dependent)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDeeper, more aggressive exhaust tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIncreased exhaust presence throughout the RPM range\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003eToyota GR Supra A90 3.0L (2020+)\u003cbr\u003eToyota GR Supra A91 3.0L (2021+)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine:\u003c\/strong\u003e BMW B58 3.0L Turbocharged Inline-6\u003c\/p\u003e\n\u003ch2\u003ePlease Note\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eProfessional installation is strongly recommended.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eECU tuning is highly recommended to maximise performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstallation of a catless downpipe may trigger a Check Engine Light (CEL) depending on the vehicle's ECU calibration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThis product is intended for off-road, racing, or motorsport use where permitted by local regulations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\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":52578600648986,"sku":null,"price":780.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/1177\/4490\/files\/243_58efbfd9-e247-46bd-845e-47cec4073fd2.png?v=1784896299","url":"https:\/\/provenperformanceparts.com.au\/products\/toyota-a90-mk5-supra-catless-downpipe","provider":"Proven Performance Parts","version":"1.0","type":"link"}