Josh,
I've been doing some research concerning exhaust for my '07 5.7 and you seem to be quite knowledgeable or could refer me to someone. I currently have dual exhaust that comes out behind the tires on both sides. The drivers side recently fell off on the interstate, so I'm thinking of replacing the entire system and muffler via my local shop. He stated he'd probably put on 2.5", but I hear 2.25" may be the best. To make things even more confusing, it seems my current system is 2" or 2.125". I have some 8"x2.25" powder coated "camaro" style tips that will be installed (2.5" inlet) but I don't want to lose any power on the low end by using too large a pipe. I have an aFe CAI, so I have a little extra power under the hood. What are your thoughts? Should I match what is currently on the truck and just add the new muffler, or should I go with the 2.25 or 2.5? Thanks for all of the help, man!
Tundras Forever,
Newman