Fisherguy

http://www.cumminsforum.com/forum/3r...donaldson.html

edd209

Thanks! I love that sound. Do you know if he kept the cat? i may be willing to sacrifice legality to have that tone.

Fisherguy

Don't think his 03 has a cat. Same muffler as my Nelson, just make sure it's supported well, mine has a hanger off the muffler and off the 45 as you can see in the pic I posted.

cstewart

I have MBRP 5" Turbo back on mine...IT'S LOUD. Originally had the muffler delete on (wife made sure that came off immediately). So now I have the baffled exhaust...sounds good. Definatly has the loud in cab drone when lugged down. I have heard the MBRP Cat back on my buddies 6.7, and it sounds solid!

BigTXDually

it was LOUD in the cab and after about 4-5 months the hangers broke off the over the axel pipes and put big holes in them. Also where the welds were on the muffler starts to come apart. I noticed this because there was soot building up around them like it does around any exhaust leak. To me it just became an expensive heap of scrap metal. My Flo-Pro was SOOOOO much better than the MBRP and was around 2/3 the price too. I just was very disappointed with the quality of the product in the end. Also when I was running it (MBRP) I had higher exhaust temps than with the Flo-Pro. Which when I ran the Flo-Pro I had A LOT BIGGER injectors and programming than when I had the MBRP. To me if you try them both and you are looking for the best performing, better quality , and quiet in cab noise while still producing a good sound outside then you would be happiest with the Flo-Pro dual exhaust over the one offered by MBRP.