I'm wanted to do a k04 swap in my b7 2006 2.0t I am currently running a stage ll flash from apr. I wanted to no if I have to do bigger injectors and if so what size also can my stock fuel pump handle the additional work or should I just upgrade. Last thing I would also have to re-tune the car according to the k04 and not the k03

 

I would check with APR for all the specifics but a High Pressure Fuel pump and a reflash will be fnneded for sure. APR - High Performance Development for Audi, VW and Porsche Vehicles.