Traded in the STI and kept the pipes. They are the 4 inch double wall tip, fit wrx and STI 15 to 18, but not 19, RA or SPT exhaust. They have been on the car for 11 months and only about 4000 miles. Perfect condition. They make an STI sound like it should. Rumble, and some snap, crackle and pop. Not obnoxious, and doesn't drone on the highway, at least on an otherwise stock car. for 350 I will ship them within reason from Louisville.