โJan-12-2014 02:20 AM
โJan-20-2014 03:52 AM
catfishmontana wrote:
I saw about a 150 degree drop in EGT's in my 2006 by switching from the stock setup to an aftermarket cold air intake.
โJan-19-2014 04:53 PM
โJan-13-2014 02:54 PM
C Schomer wrote:
My stock 03 muffler was terrible. It was so choked, it hissed like I had a smashed tailpipe, when towing. You already have 4" and that is enough. A 4" straight thru muffler is all I would do to your exh. The air intake stuff isn't worth the money. Do a search on the home depot CAI mod. Guys cut a hole in the bottom of the air filter box and use HD cheap parts to get more cold air from down lower. It's also good to get more air in the bottom of the box when you put in the newer deeper filters. Gauges (at least a pyro) are nice but not necessary til you add fuel. It's scary how hot some of the stock diesels run and you will be helping the egt a little with 2 cheap mods... muffler and the hd cai. I put a pre-turbo pyro in a fiends CTD and it was going over 1400. He took it to Cummins to see why it ran such high egt and they moved the probe to after the turbo and told him... there it's fixed, quit worrying about it! Craig
โJan-13-2014 05:24 AM
โJan-12-2014 07:24 PM
โJan-12-2014 06:28 PM
โJan-12-2014 06:16 PM
โJan-12-2014 06:10 PM
mountainsam wrote:
I just paid 2100 bucks to reinstall a cat. My 05 was purchased in MO at one year old and with a straight pipe. Sounded great at first but soon got irritating as heck. We added the muffler back but not the cat. In 2013 we moved to CA. To license the truck I was required to install a new cat. Not a cat but a new one. CA. would not accept a used one. Big problem. For the 05 Cummins I was told by the dealer that there were five new cats in the country. Dodge had to get involved to ship a cat from Ohio to CA. So if you decide to streighten out the exhaust hang on to the parts. You may need them some day. BTW. With streight pipe we got 21 - 22 mph on the highway running 2000 rpm. With the cat and muffler I get 20 - 21.
โJan-12-2014 06:04 PM
โJan-12-2014 01:36 PM
โJan-12-2014 01:29 PM
โJan-12-2014 01:26 PM
DirtyOil wrote:
Really guys? Really?
Have ya even looked at the OEM muffler on an 05 or as the OP has 06?
Its straight through!! Its a bloody resonator!! Same kinda muffle ya see on Harleys... straight through resonator some packed more with noise reduction then others. the cat is like a tube and shell boiler there's yer restriction!! Hard to get a straight linear pipe from the turbo out to the tail pipe!! Straight pipe is cat delete, remove the cat install "straight" piece of tubing in place of the discarded cat! OEM muffler is straight through, unlike some car mufflers which have the inlet and outlet kitty corner from each other. Those are not straight through, they have baffles to direct the flow to aid in producing some back pressure as required by gas engines! Diesel engine is like an air compressor air in - air out...install a 5" straight pipe (cat delete) any "muffler" resonator yer ole heart can take and install a Smarty Jr. and tell the rest to suck an egg!! ๐
โJan-12-2014 01:00 PM
โJan-12-2014 12:34 PM