This is the Apexi N1-X Evolution Extreme catback exhaust. Apexi designed this exhaust system to optimize on exhaust efficiency by minimizing the bends within the exhaust to eliminate turbulence and restriction found in the design of the factory exhaust. The result is improved throttle response, reduced turbo lag, as well as an increase in both horsepower and torque. 

DETAILS:

• SUS 304 Stainless steel construction
• Part#: 164-KH02
• Patented Megaphone Piping Structure to produce excellent torque and throttle response throughout the powerband
• Megaphone Piping Structure creates a swirling exhaust gas flow effect 
• 75-60.5mm piping diameter
• Twin 123mm titanium round-dual wall rolled angle-cut exhaust tips
• Direct bolt-on installation
• Produces an aggressive exhaust note