Yeah, I'm curious about quality as well. For fox bodys, Mac doesn't have a such a good track record for quality, but I wish I could get my hands on a 2005 Mac longtube (or mid-length tube, depending on who you listen to) and give the once over. I have an off road prochamber on my '97 Mustang though, and that really woke the sound up on this fairly quiet daily driver.
I hate the thought of paying $1000+ for LTs and midpipe, and the Macs and BBKs are a lot less...
John