Well if you are going to give it more power, then you would need better brakes. My brakes are working shit at 250kw, but hey cant afford Brembos
People want to spend money for all go, then they cant stop...
400Kw?? Mate the car would stuff up the first time it hits boost on stock internals... Denham has got 324 and he is scared to go any further with stock internals