The flash should come with the install, as for a good exhaust i would recommend the BAmuffler from dirtydeeds. There is a member on this a member on here with the screen name sngo that is getting a BAmuffler system that goes together with long tube headers and a supercharger, i cant tell u how much it would cost because every system is different. Look for the BAmuffler thread on this forum n hopefully it will answer all your questions. He might cut a better deal if u tell him u have the stock exhaust because he is looking for some of those right now. Congrats n have fun with the mods!!!!
