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Also, if it has what is called a "twice air system" hanging in the way of an easy change of the spark plug and hooked to the air breather, or ex air breather (and we know as an EGR valve, well, ok, not really an EGR valve, an air injection valve into the exhaust system to complete combustion in) the catalytic converter in the muffler (this being the reason the mufflers are so expensive).
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