okay, for a Mustang, you hook up an H-pipe after you take cats off and you have a deep sound and HP. My 92 RS 305 TBI only has a single cat. What can I do to get the same effect as a stang. Is there a replacement pipe to go in its place to get that sound and the HP?

 

sorry but theres no h-pipe for f-bodies, you could remove the cat, replace all the pipe with 3 inch pipe and run a flowmaster muffler out back and it will give a really nice deep loud rumble at idle and it will scream at wide open throttle. unless you know someone that will run true duals for you with no cats and 2 mufflers of your choice.