howdy, was on ebay today lookin at a 4in diamond eye with the down pipe. it only says 4in but not specifically was size the dp was, would the dp also be 4in? also it has that box on it that resembles the stock cat, does it have a pipe running through it or is that box open on the inside? heard that people who gutted their cat and left it open got a weird tone from it,
Thanks

 

downpipe will be 3" because our trucks run a 4" without a body lift or some firewall massaging... I don't know about the cat thing because I don't know what your looking at. If it is a new diamond eye that says straight pipe, it shouldn't have a cat...

 

guess what ill do is get just the tail pipe section and buy a seperate 4in dp, dont mind doin a little fire wall modification. and how would i go about posting a pic on here so i can show you what im talking about? thanks

 

Not really worth the 4" dp in my opinion. I don't think you realize how much work will go into getting it to fit in there without rubbing... It's not a little firewall massaging... For a 3" downpipe, you will need to do a little firewall massaging... For a 4"...well... body lift or serious firewall massaging... and you won't gain much over the 3"... Exhaust is exhaust... just find a cheap kit turbo back and install it...

as far as posting a pic, if it's saved on your computer, you can just attach it in the go advanced option...