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Old 01-15-2013, 01:44 PM
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Originally Posted by Ironpony View Post
The biggest problem is the heat falling out of the exhaust by the time it gets to the cat. If the cat isn't hot enough it will plug up sooner. The easy way would be to wrap the headers with a good exhaust wrap. If you look at most of the new cars coming out you will see the cats have been moved closer and closer to the exhaust ports. To the point where the cats are sometimes put in the manifold. And heat loss is the reason. Hope this helps Bill
Makes sense to me.
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