BO OBX Type-H Exhaust 02-06 Nissan Sentra SE-R Spec-V 2.5L 14 Gauge Mandrel Bent T304 Stainless Steel Catback Exhaust System Dyno Proven Performance To Increase Horsepower And Torque With Great Throttle Response 2.5" Pipe Diameter For Optimum Power Gain Straight Through Resonator Included To Keep Exhaust Tone Deep And Low Backed By Manufacturer Limited Lifetime Warranty