5 inch Exhaust <br>I bought a 5&quot; exhaust system including muffler for my 2003 3500, ho and they told me it had a straight through muffler, but when I looked at it, it has a baffle in the middle of the muffler closing the entire opening halfway through the muffler. I called the people I bought it from and they told me it has to have the baffle for the 2003 for the turbo to spool properly. I thought the whole purpose of a 5&quot; exhaust was to open up the turbo. He said it would have a turbo lag without the baffle. Your comments and help would be appreciated.<br><br>

 

Bigger is not always better brother. To much exhaust flow reduces exhaust scavaging.<br><br>Its just like a race car, a high CC head with high flow #'s will be a turd out of the hole.<br><br>Were as a low CC head that flows high #'s like a Steve Schmidt head. Creates so much velocity the torque is crazy.. <br><br>A large exhaust system only looks good, the factory system with a new muffler would make more power.. Just my 2 cents..

 

[quote author=wick link=board=17;threadid=16968;start=0#159070 date=1057980070]<br>Bigger is not always better brother. To much exhaust flow reduces exhaust scavaging.<br><br>Its just like a race car, a high CC head with high flow #'s will be a turd out of the hole.<br><br>Were as a low CC head that flows high #'s like a Steve Schmidt head. Creates so much velocity the torque is crazy.. <br><br>A large exhaust system only looks good, the factory system with a new muffler would make more power.. Just my 2 cents.. <br>[/quote]<br><br>All that works well for gas engines and such. The bigger the better for a turbo diesel. You don't scavange with a turbo diesel. The larger system makes more power, and lower EGT.

 

Haulin is correct, the less backpressure you have on a turbo diesel, the better.

 

Just run a 5 in. down pipe and let it dump there.<br>That would be ideal as far as your engine is concerned, but you may want it a little quieter.<br>Lose the baffle or the entire system and get youeself a new exhaust guy. He doesen't know anything about diesels.<br><br>Like said before all what he said is right for GASSERS but is not true for #2.<br><br><br> : Eddie : 8)<br>

 

Or just take a hole saw to the muffler and drill the center out, that well take care of the baffel, as long as it is not offset, then it is a little more tricky, but still doable. That is what we do to the big trucks. In Cal. you have to have a muffler on a semi, so we just (gut) the muffler, we you get inspected it looks like you have one but then is nothing inside it.<br>Heath