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			I don't have TC so I never tried it and really don't know how important it is.  I know that on some other cars, you need to open the valves in the ABS to do the job at all.  Porsche also mentions this in their factory repair manual. 
 
I believe others w/ TC have done just the flush w/o the PST2 with apparently no ill effects.  Maybe one of them will chime in.
		 
		
		
		
		
		
		
			
		
		
		
		
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