aFe MACHForce XP 2.25"–2.5" 304 stainless steel cat-back exhaust for 2020–2023 Porsche 718 Cayman GT4 (4.0L) is a direct bolt-on system made from mandrel-bent 304 stainless tubing and includes dual 4.5" polished stainless tips with the aFe POWER logo. The system features a high-flow metallic-black muffler with an integrated x-pipe and factory-style valves, is 100% TIG-welded, and includes all hardware. aFe reports up to +11 HP and +29 lb-ft of torque with this system.
aFe MACH Force XP 2.25in-2.5in 304SS Exhaust Cat-Back 20-22 Porsche Cayman GT4 (718) - Polished Tips