Exhaust is now installed, pics of course

[Yukon Jack]

Drove the K20 to American Muffler and had exhaust installed. The system is 3" pipe from the headers to the x-pipe, then 2 1/2" to Dynomax UltraFlo's and continues as 2 1/2" pipe dumping at the rear of the flatbed angled down slightly. The truck is running pretty rough, back firing or missing - now that I can actually hear the motor it sounds like a timing issue and a rocker or two need to be adjusted.

Here are some pics of the system. This is the X-pipe that I had built by someone I found on E-bay.

Rather than use the collector piece that came with the headers, American Muffler made their own piece

The passenger side collector was fairly close to the transfer case. Here is a pic of the pipe coming over the transfer case

Here is the X-pipe installed directly behind the transfer case

And here is an example of the welds at the X-pipe

Here are the Dynomax mufflers

Pretty straight shot to the rear of the truck

The pipes dumb right before the hitch and are well protected

As the motor is running rough I have not gotten on the gas to see how the system sounds - will have to wait to see what is wrong with the motor.

 

[Burt4x4]

YYYYYYYYYYYYYYYYEEEEEEEEEEEEHHHHHHHHHHHHHAAAAAAAAAAAAAAAAAA
Damn that looks cool. Crazy how long the rear pipes look in a pic. Looks like you too had a good shop doin great work
Good luck on the stumble....
Burt

 

[BobK]

that body lift makes it easy to stick that exhaust up nice and high,eh!

 

[ak bandit]

Looks great! I bet it sounds great too...Or atleast it will when the engine is running smooth

 

[garlicbreath]

What is that extra crossmember you have behind the transfercase for? The one with a small skidplate on it.

 

[Yukon Jack]

At first I thought that was where the carrier bearing is located. But looking again I think the carrier bearing is about a foot behind it. I will take a look and let you know for sure.