Subaru Forester STi Hayward & Scott Backbox

Original style Scooby design back box available in 2.5" or 3" pipework, subtle in terms of looks and sound, friendly on the motorways but growls at playtime. Centre and back box on its own will give 18Bhp. Complete de cat system will give 25Bhp. 

Can have silencer added to the tailpipe.