Has anyone used a different, tuned exhaust for the Aerovee? I have the 2 into 1 and it just doesn't make sense to me putting two 1 1/2 inch pipes into another 1 1/2 inch pipe. Would it not flow better with 4 identical length pipes?
The two cylinders on each side are not firing at the same time...so your are not in effect taking the airflow from two exhaust pipes and compressing it into one...