A'PEXi N1 Evolution R Dual Exit Catback Exhaust 2011-2014 WRX Sedan / 2011-2014 STI Sedan Course Motorsports-InStock Installation instructions for both automatic

Installation instructions for both automatic and manual transmission models

25 thread pitch and a special key for easy installation and removal

aggressive look that complements the sporty lines of your vehicle

The included 0–5V analog output makes it fully compatible with AEM’s Infinity ECU

A'PEXi N1 Evolution R Dual Exit Catback Exhaust 2011-2014 WRX Sedan / 2011-2014 STI Sedan Course Motorsports-InStock Installation instructions for both automaticThe N1 series muffler has become a staple of the import tuning industry. The N1 was the first of its kind to incorporate the classic angled muffler design that has became so familiar with today's street cars. Born from our involvement in the grueling N1 endurance series, the N1 exhaust system pairs a straight through design racing muffler with free flowing, mandrel bent piping (60. 5mm N A, 80mm for turbo applications). The combination has resulted in