my 05 mustang, s&b cold air intake, throttle body, underdrive pulleys, custom computer tune, long tube headers, no cats, and 40 series flowmaster, going with and x pipe and duals soon...
I have a 4.0 Mustang too. I want to take my cats off. How were you able to do it? I heard you have to retune the computer if the cats are removed. Could you feel a power difference?
No sound?
sabatini210 1 year ago
where did you find underdrive pulleys for the 4.0?
hunterstreet13 2 years ago
I have a 4.0 Mustang too. I want to take my cats off. How were you able to do it? I heard you have to retune the computer if the cats are removed. Could you feel a power difference?
mbell242 2 years ago
i thought they only made the harmonic balancer for the 4.0, was it worth the money
fullthrottleahead 3 years ago
Man... that quality is horrible...
asdfgoogle 3 years ago