I am looking to put and intake and exhaust in my 2003 quad cab 5.9L and was looking for some suggestions. I have been looking at the Bully Dog 4" turbo back, and intake.

 

The first question you need to answer is, what is your goal? More top end power? More low end torque? Better sound?

Without that info, it's like asking, "I need to fix my truck, what tool should I use?"

 

get the AEM brute forde HD intake and a mbrp 4" turboback exhaust. its the best intake around and the mbrp will sound good but wont get too loud to where it gets annoying.

 

Check out Farm Boys Diesel.com for an exhaust system. I got a 4 inch system and it fit perfectly and I got prompt delivery.
samaf

 

Avoid Farmboys at ALL costs! He was banned from DTR because he is simply the biggest liar I have ever seen on the Internet. The issues he has had with people are innumerable because of his antics.

 

i had good luck with diesel dawgs, they had excellent service. i personally got a 5" expandit but they have msny others

 

I had a guy 4 years ago screw me out of a Quadzilla intake, 250ish bucks. All of a sudden he closed his business down and cancelled all phone numbers. We even had an online convo about him and you said I wasnt the first. I cant recall his name now lol.