First I want to thank everyone for their help so far. Everyone is very patient. Especially since some of these questioned are answered over and over.

First question. What exactly is a "downpipe" used for? Is it to replace the cat and u-bend?

Next question. I saw, in a post, where someone said that you could just replace the mufflers to get better sound. So.....which mufflers are the best to get the sound I want? which is.....a deep low rumble. As close to a v-8 as possible. I would like for it to be heard at idle. Then louder at acceleration. Thanks.


Tony