mine goes from the turbo to a backbox and straight out and a mate had a debaffled one. it sounded like a scooby on tickover and like a tvr on full chat.

i dont see a porblem. mine is quieter without the exhaust on. coming straight from the turbo it sounds quieter. it doesn't even pop and bang, although i've never driven it like that, just revved and revved it on my drive.