I have a 2003 cummins quad cab 4X4, and i really want to "beef up" the sound... I have thought about just putting a straight pipe on it,but I've heard from several people that it won't pass inspection without a muffler. Then others have told me that's just a bunch of b.s. and a straight pipe would be the way to go.... I looked at some cat back systems, but they seem like a lot more than I'm wanting to spend... Any suggestions on getting a better sound, without spending $400?

 

i went to rpm outlet i think and i got a muffler delete for liek 60 bucks sounds awsome...took me 10 minutes to cut out the muffler and install the mandrel bent "muffler delete" sounded great then i got a cat "test pipe" sounded even better grand total of like 120 bucks

 

oh yea i dont have "inspections" here in chicago. itas still a federal offense to removed emmisions crap but everyone does. so i dont know what state your in and how percise they inspect????

 

2003 doesn't have a cat (at least mine doesn't), and where are you at that you have inspections? What kind of inspections (saftey, sound, or emissions)? Ask the people that are going to do the inspection if there is an issue with anything you are planning on doing, that is the best way to find out what you can do or not do.

 

yeah mine doesn't have a cat, i was just thinking about taking off the muffler, leaving the resonator, and maybe putting a new tip on it... but i'm in Texas, and some people say the inspections are getting pretty strict....

 

diesels are exempt from emissions testing unless you have the new 07.5 which does require it. I wouldn't be surprised if Cali requires it though.

 

JT move to Oklahoma I'm full straight and umm whats an inspection lol

 

Well, I'd straight pipe it first to see if you can handle the sound. If you like it, your cool, if not, I'd add an Aero to the mix.

Since you'll need to add a stright pipe if you're going to go with an Aero ( because it's smaller than your stock muffler ), you might as well get one long enough to straight pipe it. If your not happy, cut out a section long enough to add the Aero and your GOLD !!

 

Get the kit in my sig for $170 and install yourself for nothing. Little louder but still has manners, untill you load her down and romp it, then it talks to ya good.

 

What is a cat "test pipe" ????????