M MattD Member Feb 27, 2009 #1 Ignore the fact that its illegal. My 96 ranger has 2 catalytic converters in a row, I had heard you can burn out exhaust valves without a muffler. With 2 cats, isn't there plenty of back pressure?
Ignore the fact that its illegal. My 96 ranger has 2 catalytic converters in a row, I had heard you can burn out exhaust valves without a muffler. With 2 cats, isn't there plenty of back pressure?