Any helpful advice or info....

Ok,thanks, My CAT was turned up to 550 at the CAT dealer in Atlanta and I was told my trans wouldnt be rated for much more. Thanks for the info.
I have a 2006 W900, is changing the mufflers really worth the extra money? Priced them at PP for a little over $500.00 a piece.

 

Yes, the mufflers you have now are a reverse flow design this creates a lot of back pressure in the exhaust, then they have catalytic converters in them to create even more back pressure. Anybody changing mufflers on a Acert sees a fuel mileage gain of .2 mpg. The noise level will increase slightly using those mufflers, but not enough to be a nuisance while driving long periods of time. It's $1000 plus shipping, how long will it take you to save the $1000 with the fuel mileage increase? 6-8 months

 

You don't have to buy them from PP. They don't make them. Just go to a exhaust shop and they will have straight through design mufflers for way less then $500 a piece. Last time I bought a set of straight through "mufflers" the guy made them special for us and I think they were $150 a piece and thats CDN so should be even cheaper for you guys

Opps I just read again and I see you go a kw so you probably have the undercab U style muffler. Void thoses prices I said if thats the case but you could still get them cheaper then at PP they just buy them and put a markup on them

 

Mr. Haney, I hope to see you the 16th in Doeswell. My friend has a ISX that needs tuned. I gave him your info and he will be in contact soon. I am looking at a 07 KW with a C-13 hope you can do something with that motor. Phil

 

i got a w900L that had the reverse flow muffler i put the same straight flow muffler on that they put on the cab all i did was make an elbow that turns 180% and mounted it in the same place the old muffler went. that muffler is a donaldson i paid 75$ for it.

 

I am going to be there all day Saturday

The C13 can be tuned like the big bores..........so I can help you with that

I'll send you a PM with contact info

 

"My stage 1 725 was an animal for the 1st 2 or 3 months, now it seems... normal. It's almost time to put a manifold on, that's another 25 - 35 hp. I guess I need to drive a stock truck again.... LOL"

I take the last statement back... Yesterday I went up Monteagle with 78,000 gross in 12th at 57MPH... blew by everyone who had blown by me when I was running my fuel mileage speed of 62... I'm impressed all over again!

 

It does not take long to get used to the power. I would hate to go back to what my truck was before. I took my 1st "long" trip yesterday. I went up to Erie so I run the lenght of 79 in Pa. If it were not for the traffic and construction I could have set the cruise and not touched the shifter the entire trip. Grossed 71000 on the way up and 73500 on the way back. I had a newer Mack pulling a empty low boy blow past me at the bottom of a hill but I beat him to the top I like my truck!!
I would still add the manifold if I were you. Another 25 hp cant hurt.

 

Yeah wait till you hook to a loaded trailer and come to a hill. You"ll wonder if you lost your load