BMW 440i Valved Catback Exhaust | WSTN Performance (B58 F32/F33/F36)

The B58 3.0T makes 326 BHP stock. The factory exhaust keeps it sounding anonymous. WSTN Performance T304 stainless valved catback for the BMW 440i F32, F33, and F36. Features an active valve system with wireless remote control for on-demand volume switching. Built to order and quality-checked at our Perth WA facility before dispatch worldwide. Why Upgrade? ✓ Active Valve System: Wireless remote for instant switching between quiet cruise and full open. Civil in traffic, aggressive under load. ✓ B58 Sound Unlocked: The inline-six note the B58 produces on a free-flow system is deeper, more linear, and far more present than the muffled factory output. ✓ T304 Stainless Construction: Corrosion-resistant T304 stainless steel throughout. Built to handle Australian conditions and long-term daily use without degrading. ✓ Direct-Fit Replacement: Bolt-on to the factory midpipe and OEM mounting points. No fabrication, no modification to the car. Key Features & Specs Material: T304 stainless steel Construction: TIG-welded with mandrel-bent pipework Valve Control: Active valve system with wireless remote Finish: Brushed stainless Branding: WSTN Performance logo Fitment & Compatibility ✓ BMW 440i Coupe (F32) / 2017-2020 / B58 3.0T ✓ BMW 440i Convertible (F33) / 2017-2020 / B58 3.0T ✓ BMW 440i Gran Coupe (F36) / 2017-2020 / B58 3.0T Confirm fitment before purchase Add your make, model, year, and VIN in the cart notes at checkout so we can match against our compatibility database before dispatch. Wrong fitment costs everyone time we'd rather not waste. What's In the Box ✓ 1 x WSTN Performance BMW 440i F32 Valved Stainless Catback Exhaust System with WSTN Performance logo Installation Difficulty: 3 of 5: Requires workshop lift and exhaust install experience Time: 2 to 3 Hours Mounting: Direct bolt-on to factory midpipe and OEM exhaust mounting points Confirm fitment before purchase Add your make, model, year, and VIN in the cart notes at checkout so we can match against our compatibility database before dispatch. Wrong fitment costs everyone time we'd rather not waste. Warranty / Shipping DISCLAIMER WSTN Performance components are designed for track and competition use. To protect your build and ensure a perfect finish, we recommend professional installation by a certified specialist/workshop. It is the buyer's responsibility to ensure modifications comply with local regulations. WARRANTY We stand behind every product we sell. All WSTN Performance products carry a 1 year WSTN Performance warranty as standard. This covers any manufacturing defects, giving you total peace of mind that your upgrade is built to last. View our full Warranty policy page here. SHIPPING We offer tracked worldwide shipping on our entire catalogue. Products marked as "Built to Order" are completed in 3-5 weeks (check the product page as lead times may vary) and personally dispatched from our Perth WA facility. View our full Shipping policy page here. RETURNS We offer returns on all products if items are damaged or there is something wrong. If we ever make a mistake, we'll cover the return shipping to make it right. View our full Return policy page here. SUPPORT Need a hand with fitment, shipping, or a return? Our Perth-based team is here to help you get your build perfect. Email: contact@wstnperformance.com