|  08-20-2009, 01:26 PM | #9 | 
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				Join Date: Feb 2005 Location: It's a kind of magic..... 
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	"Test pipes" are catless replacements that they are not supposed to sell, so they call them test pipes for diagnostic use.  Kind of a "wink, wink, nod, nod" thing.  All the cars have mufflers, but some where factory, some aftermarket.Quote: 
	
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					Originally Posted by Bob O
					
				 Thanks.  What are "test pipes"?  Straight pipes with no cats or mufflers? |  | 
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