My exhaust guide results - Diesel Forum

ChrisMartinTX · 08-06-2005, 10:54 PM

These are my findings with the Exhaust Guide from Diesel Power Products... please do not argue with me or try to say anything negative unless you have one.

The guide did not have an affect on anything at low speeds or around town for me. I saw no increase in boost, but saw a reduction in EGT's at sustained speeds. Before I got the guide my EGT's pretty much ran at my speed with a zero on the end... 70 mph = 700º. With the guide installed I saw as low as 600º in 5th at 72ish mph with the cruise on (which we know is hotter than driving just by the pedal).

This pretty much goes with the info from others with the guide installed along with a muffler. The reason he had me test one was because no other people were running one on a straight piped truck. What it did do for my exhaust was smooth out the tone a little bit. If you have heard a straight piped one and here that kinda "woof woof" noise that is what I am talking about. It surprisingly had very little affect on the whistle... its still is pretty loud, which is the part I like.

Anyway bottom line is there was a drop in EGT's.

For more info on my truck or gauges or any other questions you may have go to my website. Sound clips will be up shortly!

fordboyyfm · 08-07-2005, 11:45 AM

what is it?

ChrisMartinTX · 08-07-2005, 02:22 PM

if you are familiar with the TAG (turbo air guide) its the same principle but for the exhaust. its a little piece of pipe with a honeycomb in it that straightens out the exhaust flow. there are pics on my site, http://fouralarmtechsupport.com/truck . pretty simple installation and if you are looking for slightly cooler egt's not a bad deal IMHO.