Brand new in the box never opened or installed 5Zigen Fire aka Fireball (Made in Japan) complete catback exhaust system for the 02-UP Sentra Nissan SER SpecV (Part# N304-01US). The opening of the piping is 60mm (about 2.5 inches) and the opening of the tip on the muffler is 90mm (about 3.5 inches). This exhaust retails for $650.00. Need to sell as I no longer have the car. Price $295- shipped within 48 contiguous states. Other areas please let me know and I can find out the shipping cost. I also accept Paypal payments. If you pick-up from my place I'll knock off another $45-. Phone: (661) 373-4572 ask for Chris. Thanks for your help.