I got my first (crush bent) 2 1/2in made and installed for about 100 plus change. That was with a crappy Dynomax ST and from the flex joint back. My most recent(2 1/2in catalytic cnv. 2 1/2 flex pipe and 3in mandrel bends) was quite a bit more

but very pleasing. And before people go ape **** and start talking about how 3 in pipe is WAAAAY to big for our cars(it is really I hate this exhaust right now)...let me just say these two words...TURBO PREP.