Dave Brady wrote: > > > normal driving and when really hitting it I've seen 1.7 and I think 1.8 What about overboost? Methinks an S4 should produce 2.1 for up to 15 sec. > > My '92 S4 displayed measurements pretty close to that, except that now > after adding some stuff from T.A.P. I get 2.3 bar maximum boost. Would said "stuff" include more than ECU mod? Kerry