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McDave wrote:I looked into the Cat. issue and if you are not getting a code you are probably OK. They only "clog up" if there is some other issue, oil, water etc. in exhaust. But they can break internally and the matrix can shift into the wrong position and cut the flow suddenly. You would likely hear rattling noises in that case. I am gonna predict a modest 1.5 mpg improvement with the cold air intake and exhaust. Just remember louder exhaust can make us more aggressive as well as the improved throttle response and then you wind up with LOWER mpg. So a little discipline at first till you get some data, then enjoy the upgrade.
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McDave
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