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			Narrative was not communicated clearly. There is proof of IMS failures, but scientifically what causes the failures have not been shown. Basic maintenance has shown many original IMS still exists in Porches driven with several tens of thousands of miles
		 
		
		
		
		
		
		
			
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				5280 Cruising @High Altitude 
Seal Gray & K&N Filter
			 
		
		
		
		
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