If you run a Weldon, Aeromotive Eliminator or a pump like those (not A1000) you can make more power with these injectors than your turbo is probably capable of
My impressions after tuning and driving the car today. First. WELL worth the extra money. I'm able to idle the car at 850rpm - 900rpm at a 15:1 air:fuel. I'm able to cruise the car at 16.8:1 - 17:1 with NO hesitations. The car accelerates quicker. On/Off throttle response has improved greatly. I really can't say enough about these injectors. Definately bad ass! I'm going to keep a set or two instock from now on