I've had the Magnaflow muffler on the car for a little more than 24 hours. I have fallen in love with the Xfire all over again. After I had the Flowmaster installed last weekend, I felt like I had turned my Xfire into a V6 Camaro, but now with the Magnaflow I think it's just right. Now, I believe that most people have the Magnaflow Cat-Back system. I just went with the muffler. The part number is 12158. I told the guy at the exhaust place that I thought most of the members on here had part number 14420, but he was sure that 12158 would work better. They got it installed with the factory tips and I can't argue with him. The biggest difference is inside the car. I can now listen to the radio again or talk to my wife between 2 and 3,000rpm. We went out this morning and blew about 5 bucks worth of gas making videos. Muffler and labor cost about $200. I want to say that it feels like it pulls just a smidgeon harder above 4,500rpm. Here are the links to youtube!

Revving - http://www.youtube.com/watch?v=vP-_V2Z7VuQ

0-80mph - http://www.youtube.com/watch?v=qZJmmBG4enI

Drive by 1 - http://www.youtube.com/watch?v=6UXpXLnfAe8

Drive by 2 - http://www.youtube.com/watch?v=OVL9S967e4s

Inside (brisk acceleration) - http://www.youtube.com/watch?v=DJKVfYVC2h8

Inside (moderate acceleration) - http://www.youtube.com/watch?v=XZZ-EvbsbDM