i read a back issue (july 2001) of 911 & porsche world last night cause it had a track day feature.
it mentioned in the feature that john tipler had changed the chip in his 3.2 and gained 30hp! (exhaust system changed for H & S).
there was to be a future write up on this but i've never come accross it - anyone know what edition to look at or what chip it was?
keith s do you know, you work for the rag- let us in on it??
