I'm boosting 15 psi. I bought the car 1 1/2 ago. I knew I always loved the way the car looked but I didn't know anything about turbos etc. I have the intake, exhaust, and the computer has a jim wolf sticker on it saying pop charger upgrade. The boost is controlled by how I press on the gas pedal. So I'm not sure about injectors, but after cleaning them I'm pretty sure there original. There burgandy colored. The guy I bought it from took really good care of it, he left all the receipts from Z Whizz in San Diego CA. He spent a ton of money just maintaining it.