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      09-18-2012, 12:07 AM   #23
phrenetiK
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Drives: 08 135i
Join Date: Mar 2012
Location: Houston, TX

Posts: 357
iTrader: (4)

I have forge diverter valves...I recently did the blow off valve mod to them and I love them so much more now.

they sound better than most real blow off valves, and I have noticed 0 power drops anywhere through the band. i've read diverter valves help a lot more when a car has a real MAF on the intake
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