well as posted before i had a Turbo XS RFL whatever it was called . After a long time i realized that it was leaking air due to the spring inside going soft . That caused me idle problems and loss of power. The one i have now i got it off my mechanic for free and its a Turbosmart. Pretty plain nice aluminum blue not very loud its a bit more quiet than a TurboXS i had before . Only prob i faced was because of the stiffness of the Turbosmart BOV i get a minor surge when car is not fully boosting . Im running at about 0.7 bar

Im now thinking of buying a new one because of plans for more power ( already have 2'5 inch no-cat exhast similar to the TKO one , oem filter box with K&N air filter , T3/T4 turbo , 38 mm external wastegate etc) Will be either a SSQV style off ebay
ALL NEW SSQV Blow Off Valve Turbo BOV + Adaptor KIT $95 - eBay (item 120311049451 end time Oct-01-08 05:40:12 PDT)
but because i have to take my car for inspection i was thinking for another one similar to oem European turboed cars which is this one
eBay Motors: Bosch Turbo Bypass Valve for Audi Porsche VW Diverter (item 250301471624 end time Oct-05-08 18:11:55 PDT)
unfortunetely for me i bought the car with the TurboXS BOV installed already so i dont have the oem BPV..