For BMW 335i E93 Convertible N54 N55 3.0L catback SUS304 Variable Exhaust Valve with

Engineered specifically for the BMW 335i E93 Convertible (N54/N55 3.0L), this bolt-on SUS304 stainless steel catback exhaust adopts premium TIG hand welding to deliver smooth, burr-free welds with exceptional airtightness and structural durability. Built with a 1:1 OEM replicated mold, it perfectly matches the stock chassis layout for hassle-free bolt-on installation without cutting, drilling or extra modifications, preserving original ground clearance and daily road practicality. Fitted with an IP68 waterproof & IK07 shockproof wireless variable valve controller, it offers dual sound modes: a subtle stock-like quiet tone for daily commuting with valves closed and a loud, crisp resonant exhaust note to unleash raw engine power for track driving with valves open, featuring a convenient memory function for one-key mode switching. Featuring food-grade SUS304 steel with 900℃ high-temperature resistance and anti-corrosion performance, the optimized smooth piping cuts exhaust backpressure to boost throttle response, reduce turbo lag and bring mild horsepower and torque gains. Rigorously tested for pressure, sound and welding quality, this reliable exhaust with thickened SUS304 hangers eliminates air leakage and resonance, serving as a cost-effective upgrade for both performance and aesthetics. Suitable for BMW 335i E93 with or without factory exhaust valves, the complete set contains a SUS304 catback exhaust, wireless valve controller and full mounting hardware for easy installation.