[litlmustangmoody]

315 Are too wide for me unless you go all out and actually need a 315 the lip rolling and stuff is to much work I run a 275 BFG and it does a FINE Job! the 1 chamber flows are just enough to say you have mufflers on the car and I don't know how it is in your state but in tennessee 1 chamber mufflers are ILLEGAL and I have 2 chambers on mine but they are 3" with no tail pipes and I have gotten a ticket for them by a state trooper. I had to go to court and tell them that a 2 chamber flow is street legal and show them in the flow magazine so to keep it legal but still estremely loud I would go with a 40 series 2 chamber flow and the 3" or 2 1/2" both sound amazing and verry loud with no tail pipe! the best thing I can tell you is go to a car show and ask someone who has a set of wheels and tires on their car that you like and ask them their back spacing to be sure. going that wide has it has to be perfect!!!