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COBB Tuning · 05-21-2012, 10:59 AM

If the car has over 35k miles and the intake valves have never been cleaned from carbon build up, I would highly recommend having that done. The carbon build up can lead to symptoms like a sluggishly responding car and even misfires.

Ian

05-21-2012, 10:59 AM	#1311
COBB Tuning Major 233 Rep 1,051 Posts Drives: 335i Join Date: Dec 2010 Location: Austin, TX iTrader: (0)	If the car has over 35k miles and the intake valves have never been cleaned from carbon build up, I would highly recommend having that done. The carbon build up can lead to symptoms like a sluggishly responding car and even misfires. Ian
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