Side Exhaust

................... do you really have to use the AAR type mufflers? I was just going to put the AAR ends onto short mufflers off of the headers ..............

If your read through this thread, there is mention of this very thing. There is no real room up against the floor for mufflers up by the headers. They hang down, etc. So using the AAR type allows them to be tucked up where they belong.