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Gains from Aftermarket DV

958 views 5 replies 4 participants last post by  Palmer 
#1 ·
So the bpv on my dads car is starting to hoot and compressor surges quite a bit. Does the stock Viggen bpv leak boost at all? Time for aftermarket bpv?

Car is a 2001 9-3SE with intake and SMBC

Thanks
 
#2 ·
By 2000 or 2001 all saabs had the "Viggen" bypass valve in them. So, other than fixing a broken and leaking part that it sounds like you have, you will see no performance gain over what you had before your valve began to leak (if that is actually your problem here).
 
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