Re: [DML] Re: engine with no cat
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Re: [DML] Re: engine with no cat

My muffler guy, took the muffler off my sons 75 olds and all he has now 
is a stock GM cat.  The cat is one of the old big ones.

The car is surprisingly quite.  Sure it is somewhat louder than with a 
muffler, but not that much.
The car also runs better.

I wonder if anyone has just run a D with a cat and long pipes with no 
muffler.  The pipes muffle the noise but provide very little 
restriction.   This still legal from an emission viewpoint.


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