ok so a quick question..
just for shits and giggles a thought i would put a one way valve in the coupe to see if th ecolins sounded any louder..
just a few things..
plumbed the valve in and the colins is louder but loads o turbo chatter... is this normal and ok as i have had my OEM and baileys running together for years now.
valve other way round i lose boost..
usually im ok with this crap but today im just a bit thick.