Quote:
Originally Posted by David Inc.
It's fun running with a test pipe for a little more noise, but until you really change out the exhaust it's not so much more entertaining.
Besides, without a cat in place you'll notice pretty quickly that running the engine in the garage is a very bad idea. "Okay I'll just run her for a bit to check something and man why does my head hurt so bad all of a sudden?"
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I don't know. I replaced my M&K premuffler with a test pipe I was given and definitely sounds better at cold start and idle. Now my beautiful premuffler sits on a shelf in all its stainless steel glory.