It's for stock it looks like. I have an aftermarket 4" exhaust and muffler and can't find the right size delete since my muffler is longer than stock. I'm gonna end up going to my local muff shop and have them cut me a piece of 4". $10 a foot.
I here a guy around my town with a delete 7.3, sounds awesome. Getting mine soon. I vote delete!

 

I put a delete pipe on my old F250 similar to what Clay is selling and my X has a full 4" MBRP. Honestly, the volume isn't that different, to me anyway. The sound, is though. It sounds more tuned and throaty, less raspy.

 

I had my muffler removed and had a piece of 3 1/2 pipe (stock pipe size) welded back in. Didnt really change the sound much except more turbo sound through the exhaust. dropped EGT's at 65MPH by 200 degrees. only cost $75.00 dollars.

 

i have muffler delete on now the pre bent one from pure diesel power, before riffraft got em, like it but going to be getting 4 in soon with no muffler so i vote no muffler, less restriction

 

szotty. I agree no muffler! 4 inch should help out tremendously! Especailly right off the turbo!

 

I just installed my 4" turbo back MBRP last weekend. Muffler delete and a tip, and you'll be a happy camper!

 

Well I guess you can tell by the pic I decided on the 4" Diamond Eye with no muffler.

 

Another weekend project....It is really becoming an addiction I think. An expensive one at That..........Im having lots of fun doing it though.

 

Hi.... My name is________ and Im an PMS addic






Welcome to the club

 

What are your opinions of the Diamond Eye system? Did you put a tip on it?

 

I have not installed my diamond eye exhaust yet. I just recieved it yesterday. I do have a tip ordered for it. I ordered a 4" in and 5" out 12" long stainless tip. I will try to post pics and my thoughts and opinions after I do the install.

 

I just had my mbrp 4” exhaust with muffler installed yesterday and I love it. Can actually feel the extra power and love the deep sound

 

What really is the difference between the MBRP and the Diamond Eye? (other than brand) Looking to do my exhaust soon!

 

i dont know i just ordered a diamond eye so hopefully not crazy different my bud has a mbrp with muffler and sounds good

 

Had anybody seen decrease in fuel mileage after exhaust install?