Quote:
Originally Posted by Jeremy5848
That was discussed in an old thread I found while searching the forum last week. Turns out that an empty trap cat acts as a form of untuned expansion chamber that isn't good for the exhaust gas flow. Much better to replace it with a piece of pipe the same size as the exhaust manifold, so the argument went. Makes sense to me.
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I would agree regarding the empty cat., but mine is not empty. Approx. a 2" hole straight through. I took great care to get all loose pieces out. Probably 2k miles ago....no problems.
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85 300D (California) 220k
03 Silverado 1500 Xcab Z-71 Guzzler 90k Real American steel(made in Canada  )
03 Suburban 1500 4x2 Guzzler 170k Real American steel(made in Mexico )
Diamondback hybrid
Element skateboard(mileage unknown)
Good news for diesel owners...There's no such thing as cold...only the absence of heat! 
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"Possession....the King of sin." The Avett Brothers
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