Saturday I installed the Kook's L/T's on the Mach. All I can say is with the x-pipe and SLP it is screaming loud and the power is on tap through the powerband. Awesome mod!
i just bought my long tubes the day before yesterday and I CAN'T WAIT to get them put on. Several people have told me that it'll really wake the car up as far and sound and low-end torque goes. CAN'T WAIT!!!