I have one of the 44 off road mufflers. It sounds good but, I don't think it's worth the coin you spend for it. If you're going for sound and some extra HP, buy a muffler you can see straight through. Cherry Bomb for example. The black finish on my 44 went to crap in 2.5 seconds! You can see it in this thread
http://board.marlincrawler.com/index.php?topic=58002.60. (I took the pic where the muffler looks best) I don't know what you're getting quoted for pricing but my local parts stores were in the 120's. While working in Ohio I stopped in at summit racing and picked one up there it was 86 bux. I don't think I would put another one of these mufflers on my truck unless it was free or under 50 bux.