Hey Andy. Like you, I was underwhelmed by the stock sound but didnít want to go boy racer and sounding like a fireworks show at the traffic lights! For £500, a company in Basingstoke replaced my back box and pipe into it with a more throaty one, parts and labour. Did a great job and has left a nice sound that rasps like an Alfa should. Bit of drone when cold but once underway, stays quiet until you give it some beans. If switching to D now, I turn off the radio to enjoy the sound. If you want details or want to come and listen to mine, DM me.