5" Straight Pipe 3rd Gen
 

so... how bout some 5" straight pipe on a 3rd gen. i have heard 4" sound crappy on a 3rd gen but supposidly the 5" sounds like a 2nd gen. any thoughts? also, any millage increase over the stock muff and cat?

The four inch does NOT sound crappy at all straight piped. It actually sounds mean as hell. I ran that before I got my stacks and still have 4" until the Y pipe under the bed and then it goes to 5". On top of that 5" is not needed until you start getting into the more than 500 hp range, it is just not necessary. Let me see if I can find an old video of mine idling then going into gear and I will let you decide.

5" sounds just like a semi. I had mbrp 5" straight piped and it sounded mean; especially the downspool of the turbo! But I admit, t was just too loud for me. And I felt bad for the old people and minivans next to me that lost their hearing when I flew by! It was hard for me to hear on the phone. I went down to silverline 4" duals and like the sound. Not too loud but still good.

man even a straight piped stock pipe is loud as hell on a 3rd gen, one of my co-workers got called in all the time because people thought he was driving the hell out of that thing the truck it was so loud.

and a 5 inch gives it a nice low rumble but the drone on a 3rd gen is crazy on freeway speeds.

I agree with all of the above. I ran 4" straight pipe on my 04.5 and it was crazy loud and didnt sound the greatest. You will also lose low end.
I have a thread I started about my exhaust that will explain all of my findings.

hers wat mine sounded like with a 7 inch tip
https://www.dieselbombers.com/transf...day-today.html

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some more its very loud lol i loved it
https://www.dieselbombers.com/transf...t-u-think.html

oh and its 5 inch with 7 inch tip

Awsome!!!

Where did you get a 7 inch tip?

made it from a 7inch stack

Sweet do you have any pics?