I found my lost power!
#31
Nordschleife Master
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Your diverter valve should not be making that noise, that shows its bad. Running a blow off valve will give you the loud wooossh but it will cause your car to run rich. My evolution motor sport billet diverter valve i got from lindsey works great and makes a ppssshhht noise but its not really loud but I can still hear it with my windows down.
The original ones fail often. In fact they don't even make them anymore and you must get a new 993tt one to keep it stock. Don't buy ebay crap, get one of these instead...
http://www.lindseyracing.com/mm5/mer...de=BYPASSVALVE
The original ones fail often. In fact they don't even make them anymore and you must get a new 993tt one to keep it stock. Don't buy ebay crap, get one of these instead...
http://www.lindseyracing.com/mm5/mer...de=BYPASSVALVE