My new exhaust install

[DaryleB]

Hello All,



I am pretty new to this site and have found all the info here very useful. I decided to go with the donaldson truck muffler 41" and the offset pipe from Diesel power products. I found them to be very helpful as well as my local Freightliner dealer ( where I bought the muffler). Let me break down the cost



Muffler $65. 00

Pipe SS $89. 00

Install $100. 00



i thought about doing the install myself but after reading several threads I decided a c-note was well worth the money spent. Glad I did. If you are cosidering this route it is well worth the money. It would have been cheaper if I knew how to weld.



The results I am very pleased with the results. not much louder than stock at idle but when you get on it it feels like the turbo spools up quicker. A little more throaty but not overbearing. The EGT's with a stock muffler seem to be a little hotter than the Donaldson but I have not towed my boat yet. I will report back when I do. The stock muffler appears to be holding this motor back as well as the catylitic ,but oh well. I live in CA so I gotta keep it (cat) for now. I have included a link for my photos feel free to browse them and enjoy. Any questions just ask.



http://pg.photos.yahoo.com/ph/dbalao@sbcglobal.net/album?.dir=/d42d&.src=ph

 

[Matt400]

Hey Daryle,

Welcome to TDR and thanks for taking the time for pics and sharing, looks good!

 

[Mark Craig]

DaryleB,



Great write up on your install, for others that read this though we can save you a decent amount of money and installation costs! Our 409 stainless replacement performance muffler is an exact fit to the stock 4 inch pipes and even has the welded hangers on it to reuse the factory rubber mounts. The sound level is basically stock and we even have a cat test pipe if you use the truck off road or race with it, the test pipes are available in 409 stainless and aluminized too!



Mark @ DPPI

 

[DaryleB]

Ok I got to tow the boat today (5500 lbs). Towed over to the coast. Half Moon Bay, Ca... My truck seems to pull a little harder and does not seem to be so stuffy. The exhaust flows more and my exhaust temp have come down about 100 Degrees over the stock muffler. Pulls the hills well. Did see a spike in the temp about 1300 deg. but came down fairly quickly. Also I have noticed it is a little louder when accelerating but no drone is present. Overall I am happy with this mod and can't wait to do the next one. Maybe a quadzilla or intake??? anyways thanks for the help guys.

 

[red-rider]

Maybe a quadzilla or intake??? anyways thanks for the help guys.

Hey Daryle,

Im no pro, but between these two I would suggest an intake, let that puppy inhale alittle better.

 

[JeepinDoug]

Daryle, looks great, now I gotta do something with my muffler,

100 degrees is worth it.

 

[Po' Riggity]

muffler?? Did you already replace your truck??

Scott

 

[DaryleB]

I really believe this is a good mod. the stock muffler is holding this engine back. The Kitty realy seems to clog the system also, but us CA's gotta keep.

Daryle, looks great, now I gotta do something with my muffler,

100 degrees is worth it.