Not trying to jack the thread but I can't remember if I ws told to run 2or 2 1/2 or 3 inch pipes for sido setup with a magnaflow muffler?

 

08 Hemi, I dont know what you've been reading, but shortys make torque, and long tubes make high end horsepower. Always have, always will

 

^^ Yep
They both make higher tq numbers than stock log's but LT's shine in high rpm.

 

Hemis from the factory are poor tuned dogs. A CAI, good tuner and a real dual exhaust system is the only way to go, if you want to see the full potential of your ride. Remember an engine is an air pump, and what it takes in it has to move out effeciently, and two cylinder banks of an engine going into one 3 inch pipe will not move the air like it needs to be moved, but two pipes totaling 5 inches will. Just trying to be helpful, but I'd save your pennies for that extra pipe, stock or modified, plus get rid of the stock log exhaust manifolds. I know some of you have never seen what one looks like off of the truck, but they are so bad, I couldn't believe the truck even ran with them on, as restrictive as they are

 

To Bad Black Ram
Who in the world told you that hemi truck factory cats were high flow. They are one of the the most restrictive cats I've ever seen. You can hardly see light through them, whereas a real hi flo looks almost like a straight through pipe. I know, I've replaced mine and the factory cats are nothing like hi flos

 

Undoubtedly you have never run true duals on your truck or you wouldn't make such a statement, also chambered mufflers work as well as any muffler,and have absolutely no issues as far as any damage to valves or anything else, and stock cats are definately not high flow cats. Where do you get this information???