mk5 golf gti edition 30 top bhp

What is the max bhp can u get out of a mk5 golf gti without forge ing the engine

I have mine running at 390 but thinking if it could be any quicker

 

Have a look at the Garage Midnight Mk5.

 

Thanks for that

 

Couldnt really find an answer does **** no roughly wat will be a safe bhp to run on

 

Iv done a 4wd conversion on my mk5 edition 30 so will want as much bhp as i can get