350hp
- you do need only a software/chip
400hp
-bigger turbo
-fuel pressure regulator 4.3 bar
-sport air filter
-software
-sport cats or no cats(which is possible in my country )
450 hp
-bigger turbo
-software
-sport air filter (open)
-racing camshafts
-fuel pressure regulator
-76mm straight pipe exhust with only one straight silencer
-bigger injectors
-(on this application none of the companies talk about s1 intake.they are chancing the intakes over 500hp applications.i am not sure on that.)
apparement,, assez juste, ça donne du coup aussi une bonne idée du budget a sortir 
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