remove cat, hack off the end of the flowmaster opening to 3" using 3" pipe as turndown.. the turn down must look like this to get desired effect..
the shorter, larger the better. must be pointed directly at the ground
__________________ MY BUILD THREAD
1999 MAZDA 2500SE, 2.5L 4-clanger, 5 speed, Green n slow. Rangers as daily drivers since 1988.
ASE Certified Mechanic, Builder of Show Destroying Protouring and Classic cars..