I just brought a powerflow back box off a mate that had it on his vtr, and had it welded on on saturday, but it doesnt quite make as much of a 'raspy' noise as it did on his? but there is not difference between our cars? apart from he has an air filter on his instead of the standard airbox. i know the exhaust is only 1.5"/2" but it sounded a lot better on his? anyone got any ideas why?
Cheeers
Cheeers
