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Old 05-24-2012, 07:10 PM   #53
Mango
A full five stars, son
 
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Join Date: Mar 2006
Location: Southern California
Posts: 22,757
My Ride: M54B30
Power steering personally I'd do at 25-30k. Throttle body... of course you want the bore to be as clean and smooth as possible. Less restrictions, smoother flow means better response. Even if there were no benefits, I like everything clean. Benefit enough for me
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