This isn't my car, but i thought i'd post it since it's probably the best sounding Dynomax setup i've ever heard. It's a carbed 306 with Mac shorties, X pipe and Dynomax Ultra Flows cat-back. I think it's probably pretty quiet just driving around because he said his 306 will rev to 7k so he's probably winding it out pretty high in the clip, but i like how smooth and rippy it sounds. YouTube - LONGROD 306
Yeah like i said, that's probably close to 7k you're hearing so don't expect anything close to that on a stock engine.
i still want macs. this car. love the sound. wondering about with an X pipe! YouTube - 1987 Mustang Lx 5.0
Not sure about an X, but I'm running an H-pipe w/ LT's and no cats. The MAC's are fuggin LOUD. Some days I like it, and some days I want 3 chamber flows. I'm not sure how it would sound w/ the three chambers though. No laughing at my driving............ Video of capri and 07 gt - Photobucket - Video and Image Hosting
I kinda like the Dr. Gas X / Spintech set ups. I wish someone would make a vid while the car is under load. YouTube - Dr. Gas X-Pipe on Fox Body Mustang YouTube - Spintech, dr.gas x-pipe, bbk longtubes
MAC are one of my favorite mufflers, especially with an X. If i end up getting rid of my Magnaflows, it'll be for Spintechs or MACs.