[caverman]

Magnaflow Comp axle back and SLP LM I are the same as a muffler delete except that it will also come with different tips. I think the Magnaflow ones are 5". A little big for my taste but there are alot of people who like them.

If I were going to do an axle-back I would've probably gone with the SLP LM II.

Not sure what straight pipes are supposed to be? I'm gussing a resonator delete and a muffler delete? I don't know about that one. I would at least put an X-Pipe in there.

Thing is that it's going to come down to personal preference. What I think sounds good you might think sounds like crap. What I think is loud you might think is too quiet.

For the money, I would tell you to consider the new Cherry Bomb cat-back. You can get it for $400 and sounds pretty good to me. Do a search.