Ok i want some bolt on mods for my mk2 172 but dont want the expense / warranty issues of a chip. What i want to know is which mods are ok without a chip being needed - full exhaust, de-cat, ind kit, panel filter.
I notice a lot of people who fit an induction kit say they have to fit a chip because the engine runs lean, is this with all ind kits or just the viper?
Cheers
