Seems my un mapped 1.8t Quattro 190bhp bex engine is boosting to much. It peaks at 20psi and holds 15psi I had a old boost gauge from a friend and it read 19/20psi so thought must be nakered so bought a new one that records peak boost and its still 20psi vacuum is fine at -20 lol did audi give the 190bhp more boost to make the 190bhp over the 163? Mods that would effect it are only n249 delete and lemme winks on vag-com any ideas as to why this could be? Really scratching my head with this one.