Apex N1 ExTi exhaust for 2002+ 350z. The N1 ExTi utilizes full stainless steel piping mated to an immaculately constructed Titanium N1 Muffler. The muffler section features a full titanium canister which discharges through an adjustable length 115mm super heated (burnt) titanium tip. The 5 step adjustment range of the finisher tip is designed to allow users with aero kits the ability to extend or retract the tip to meet the dimensions of the rear bumper. The N1 ExTi stands as a true lightweight version of the N1 exhaust, successfully blending form with function. Piping increases from 70mm-80mm throughout piping.