Pre-Production 80 Exhaust by EMS Powered (1 Viewer)

Joined
Oct 3, 2006
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a little rod knock in the the princess truck?

I don't think so. I think it's just the way the exhaust sounds. My truck did the exact same "knock" before the exhaust was replaced. It's less a knock sounding IRL, IMHO.

If it is rod knock, it's been doing it for 3 years and has always sounded the exact same. From my understanding, rod knock gets progressively worse, it doesn't stay the same.
 
Joined
Nov 26, 2006
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San Antonio.
Seems like if you made the exhaust straight out like the original you would have room for a resonator. Of course you should tuck it up like CreeperSleeper's:
exhaust.jpg
exhaust.jpg
 
Joined
Oct 3, 2006
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Seems like if you made the exhaust straight out like the original you would have room for a resonator. Of course you should tuck it up like CreeperSleeper's:

It's not the end itself, but right where it bends after the frame (behind the tire).

There's simply not a lot of room there.
 
Joined
Oct 28, 2007
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SoCal
Just out of curiosity - do you mean a 500 rpm drop or a 50 rpm drop? 500 rpm on my truck is something like the difference between 50mph and 80 mph.
 

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