Your factory air box has a job to do. One of these being to
silence the engine as much as possible! Not only does this often
strangle the performance but it keeps induction noise to a minimum.
Replacing the standard airbox with a Powertec induction system
will unleash the induction roar that your engine was built to make.
At low revs and part-throttle you shouldn't notice a big change,
so there is no danger of a headache on motorway journeys. But put
your foot down and prepare to have your ears seduced by the unique
sound of a Powertec!