Modifying
03-13-2005, 01:18 AM
hey,guyz,
How much HP would i gain if i am going to change the Turbo-Back(catless), up-pipe(Catless), and a Utec?
i have a 05 wrx
How much HP would i gain if i am going to change the Turbo-Back(catless), up-pipe(Catless), and a Utec?
i have a 05 wrx