APEXi Exhaust N1 Ex Ti Subaru Impreza WRX 2002-2007 *Discontinued 0-5V Output Gauge All LED wiring come pre-assembled

All LED wiring come pre-assembled for easy plug-and-play use

Factory fitment - Seats directly into OEM air box without adapters or brackets

Exhaust gas valve position sensor (very important to understand at which RPM value the exhaust port opens)

Integrated manifold and converter - Eliminates the need to source and match separate components

The lock ring tightens to the main nut body

APEXi Exhaust N1 Ex Ti Subaru Impreza WRX 2002-2007 *Discontinued 0-5V Output Gauge All LED wiring come pre-assembledExhaust N1 Ex Ti Subaru Impreza WRX 2002 2007 The N1 Muffler series has evolved once again! The N1 ExTi (Expert Titanium) offers all the performance and quality of our race proven N1 Exhaust systems plus the incorporation of an ultra light weight titanium muffler section. For years, the N1 Titan has only been available to our customers in Japan; at APEX USA we are very pleased to be able to offer this muffler to the US tuning market under the N1 ExTi