BMW B58 (G20 G30 G01 G29) & Supra A90 (2015-2026) Performance Downpipe - Vortex

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BMW B58 (G20, G30, G01, G29) & Toyota Supra A90 Performance Downpipe - Vortex® Unlock the True Potential of the "Modern 2JZ" The BMW B58 engine has earned its reputation as a tunin g masterpiece. But even a legend can’t breathe through a straw. The factory downpipe, choked by a massive, high-cell density catalyst, is the single biggest bottleneck for both power and sound. Vortex® has engineered the ultimate high-flow downpipe solution to eliminate backpressure, significantly reduce turbo lag, and deliver the crisp, aggressive straight-six soundtrack that these machines were born to have. Whether you're chasing lap times or 1/4 mile records, our downpipe is the foundation for your Stage 2 build. ### Vehicle Compatibility & Fitment Precision-designed for a 100% bolt-on fitment across the B58 engine platform: Model Range Chassis Code Engine Year Range BMW 3 Series G20 / G21 M340i / 340i 2019 – 2026 BMW 5 Series G30 / G31 540i 2017 – 2024 BMW X3 / X4 G01 / G02 M40i 2017 – 2026 BMW Z4 G29 M40i 2019 – 2026 Toyota Supra A90 / A91 3.0L Turbo 2019 – 2026 导出到 Google 表格 ### Technical Highlights Maximizing Power & Efficiency: By optimizing exhaust gas velocity, our downpipes allow the B58’s twin-scroll turbo to spool up significantly faster. Pair this with a Stage 2 ECU tune for dramatic gains in both peak HP and torque. Signature Straight-Six Soundtrack: Transforms the muted, vacuum-like factory note into a muscular, high-definition growl. Expect sharp "pops and bangs" and that iconic high-frequency mechanical rasp. Premium Material Engineering: T304 Stainless Steel: Precision mandrel-bent stainless steel for maximum flow and lifelong corrosion resistance under high thermal loads. Grade 5 Titanium (Optional): For the ultimate weight-conscious build. Significantly lighter than stock and provides an exotic, sharper metallic tone. Artisanal Craftsmanship: Every Vortex® system features our signature hand-laid TIG fish-scale welding. This ensures maximum structural integrity while looking like a work of art under your chassis. Heat Management Optimization: Designed using 3D laser scans to ensure perfect clearance and improved heat dissipation, protecting sensitive engine bay components. ### The Vortex® Quality Standard "Precision Built. Performance Driven. Secured by Vortex®." 🛡️ 2-Year Limited Warranty: We stand behind our engineering. Your Vortex® B58 downpipe is covered by a 2-year warranty against any material or manufacturing defects. 📦 Industrial-Grade Secure Packaging: Protected by custom-molded foam, reinforced multi-layer boxes, and protective film to ensure it arrives in showroom condition, ready for the track. 🛠️ 100% Bolt-On Fit: No cutting or welding required. Our systems utilize all factory mounting points and O2 sensor bungs for a seamless, professional installation. Show more