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Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by vr6gordy, Jan 24, 2013.
witch spark plugs are the best to go for for my 1.8t a4 cab (bfb engine code) 2004
ha ha ha i know that but witch is best ??????
NGK personally - have you done any modifications to the engine?
not much realy cat bypass pipe and k and n filler