APEXi® N1 Evo 304 SS Cat-Back Exhaust System with Single Rear Exit (161AT004) StillenShipping_30 1) SwitchFire(tm) assembly

1) SwitchFire(tm) assembly

This is not the case with the Injen Evolution cold air intake

Removes all encrusted deposits: sand

Full size ports at each end for optimal injector supply and minimal hydraulic fluctuation

This is the same high-quality hardware kit we include with all GrimmSpeed Up-Pipes

APEXi® N1 Evo 304 SS Cat-Back Exhaust System with Single Rear Exit (161AT004) StillenShipping_30 1) SwitchFire(tm) assemblyN1 Evo 304 SS Cat Back Exhaust System with Single Rear Exit by APEXi. Exhaust System Type: Cat Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3. 35" to 3. 74". Exhaust System Sound: Aggressive Loud. The 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