i have a budget b, stock muffler, and warpspeed y. i have a problem with exhaust leak, you can hear it as soon as you turn on the car. well, the budget is 2.5 in diameter, but the muffler is 2.25 i believe, and y pipe is 2.5 i think. anyway, what kind of gasket do i need to get? i was wanting to go to napa, but im not sure. can anyone help me out on what i need to get?