Mercedes C63 AMG SE OPF Catless Downpipe | WSTN Performance (M139 W206)

476 BHP, 700 Nm, and a factory OPF muffling the sound of every rev. This replaces it. WSTN Performance T304 stainless OPF direct catless downpipe for the 2023-present Mercedes-Benz C63 AMG SE W206 and S206. A direct replacement for the factory exhaust manifold assembly with the Otto Particle Filter bypassed, quality-checked at our Perth WA facility before dispatch worldwide. Why Upgrade? ✓ Remove the OPF Restriction: The Otto Particle Filter is the primary restriction and acoustic suppressor in the W206's exhaust path. The direct replacement bypasses it entirely. ✓ Improved Exhaust Flow: Freer flow from the manifold section improves turbo response and top-end breathing. The OPF's filtration media is a meaningful restriction at elevated revs. ✓ T304 Stainless Construction: Matched to the W206's precise underbody geometry. The packaging on the AMG 2.0TT installation is tight, built to fit without clearance compromise. ✓ Hand Built to Order: Each downpipe is built to your order from Perth WA. Not pulled from stock. Key Features & Specs Material: T304 stainless steel Construction: TIG-welded OPF section: Direct bypass, Otto Particle Filter removed Fitment type: Direct bolt-on to factory flange and turbo outlet points Finish: Natural brushed stainless Branding: WSTN Performance logo Fitment & Compatibility ✓ Mercedes-Benz C63 AMG SE Sedan (W206) / 2023-present / M139 2.0TT PHEV ✓ Mercedes-Benz C63 AMG SE Estate (S206) / 2023-present / M139 2.0TT PHEV 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 Mercedes C63 AMG SE W206 OPF Direct downpipe with WSTN Performance logo Installation Difficulty: 4 of 5: Requires workshop lift, heat management, and exhaust experience on a hybrid platform Time: 3 to 4 Hours Mounting: Direct bolt-on to factory head flange and turbo outlet Technical Note: This product removes the Otto Particle Filter (OPF) from the exhaust path. Intended for track and competition use, or jurisdictions where the modification is permitted. Compliance with local vehicle regulations is the buyer's responsibility. 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