Got a 1641 twin port AD type engine with standard exhaust that needs replacing. I want a stainless steel one but dont want to make it too noisy or sound racey. I've had a look on line but Im concerned as nothing looks like what I've already got in place with tubes all over the place. I do like the look of the twin pipes but cant find anything for a 71 Early bay. Any recommendations? Thx Watty