Yes, I am asking if modifications are necessary to the exhaust. I own a 98 Sentra SE, and love the performance improvement (and sound)of my JWT POP charger and AEBS header(no EGR). I only want to replace my exhaust once, as with all my mods, so quality of manufacture and performance are paramount. If I can get a "Greddy" for Courtesy's cost, and help out those who help us, all the better. I am particularly interested in the "Bullet Oval" w/ "Dragger Style" tip.
And thank you all for the prompt replies - I'll definitely stay tuned.