I would say that it's too big, but I would take them mufflers for free, and then just run a reducer like previously stated. Besides, three inch duals would be too much money for the loss of backpressure and torque. I got 2.5, just cause I plan on buildin' a 360 stroker this summer, while out of school and actually making money and not just wast...spending it on a good education. hmmmm. James