so i went to the local exhaust shop today to get a price on a 4 inch turbo back exhaust. so the guy there said that a 4 inch woukldn fit... i believe he was wrong but what do you guys know about a 4 inch on our old trucks

 

It will fit. A four inch downpipe, a 7 foot piece of straight four inch, and a tailpipe is what I've got on mine.

 

Search 4" on here theirs lots of threads about it. Just my 2 cents, Mike.

 

Screw exhaust shops.

You can buy a 4" turbo back exhaust w/downpipe and all from diamondeye for $275.

http://www.tvdiesel.com/exhaustsyste...onents-18.aspx

 

Can get them from Stans too.
http://www.stans-headers.com/diesel.htm