LMM - MBRP Cool Duals Diesel Exaust (Filter back)

**DMAX-HD** · 07-12-2007, 05:37

Anybody try this yet?

It's filter back so the DPF is still on.

**DMAX-HD** · 07-17-2007, 13:07

Updating my own thread since nobody else replied:

Still waiting for the exhuast to arrive. It's filter back and appears to bolt-on right before where the muffle is now. When I get'er on I let everybody know...

**Dakster** · 07-26-2007, 17:22

Did you get it?

**DMAX-HD** · 07-28-2007, 19:39

Put'em on last night. Took a little over an hour to get old system off and new system on. So far so good. Little growl and you can hear the turbo spool more. Otherwise no big diff. Considering I took the muffle off it's prolly the quitest system I've ever intalled. No drone at any speed. Haven't had regen through them yet but my thinking was where 1 pipe is good 2 might be better for heat displacement.

O yea the pipes are flutted right before the tips...

**Dakster** · 07-29-2007, 10:56

Cool... Can you post some pics?

**JeepSJ** · 07-31-2007, 11:45

I just read an article on the design of the factory exhaust. I wondered why the stock exhaust had the big flare at the end. The article said that EGTs at the tailpipe are 800+ degrees during the regen cycle, so GM added the flare to help cool the gasses. Does your new system have that same type of flare on the end of it?

**DMAX-HD** · 07-31-2007, 16:31

Both pipes are fluted - almost like gills all the way around right before the tip. So it appears to be taking in cool air much the same way the factory exhaust did

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