APR 21-25 Porsche 911 3.7L Catback Exhaust System

Our premium cat-back exhaust system for the 992.1 Porsche Turbo & Turbo S (911) 3.7L is a full T304 stainless steel system with quad exits. It features dual 3" & 2" exhaust paths that creates an exhaust note that's sure to turn heads! The cross sectional area on the non-valved paths are 66% larger than stock, and the valved paths are 19% larger. Yet despite this, the system weighs 37% lighter than the upgrade Porsche Sport Exhaust (PSE)! The short valved paths let the system scream at wide open throttle with minimal backpressure and maximum exhaust velocity through the system, which is exactly what a turbocharged engine wants. And when cruising, the valves close, allowing the system to act civilized with enough growl to let you know it's there. Of course everything in the system is high quality. All tubing is brushed T304 stainless steel with mandrel bends and TIG welding throughout. The exhaust valves are cast and feature premium components. The mounting brackets are CNC-bent and CNC-laser cut for a precision fit. All this makes for a premium system that's simple to install, is larger than stock, weighs less than stock, and sounds amazing in every scenario. Factory Valve Integration • 37% lighter than PSE • Drone-free cruising • Fits: 992.1 Porsche Turbo & Turbo S 3.7L 2021-2025 Models

• Cross-sectional areas is 66% larger on the non- valved paths compared to stock (1.55” PSE vs 2.0” APR)
• Cross-sectional areas is 19% larger on the valved paths compared to stock (2.75” PSE vs 3.0” APR)
• Single piece design makes install simple with only 2 clamps and 2 mounting features
• Cast T304 stainless steel valve housings with ECU factory valve actuation
• Direct plug and play upgrade fitting both base and PSE equipped vehicles
• Short valved paths for minimal backpressure and maximum exhaust velocity
• 37% lighter (10 LBS) than the factory PSE (27 LBS PSE vs 17 LBS APR)
• 3” dual valved paths and 2” dual non-valved paths
• Dual exhaust valves for sound and drone elimination
• Full T304 stainless steel catback exhaust system
• CNC-bent and CNC-laser cut precision bracketry
• CNC-mandrel bent tubing with a brushed finish
• Drone eliminating muffler
• TIG Welding throughout
• Emissions compliant