Hi all, i got the new bike deristricted yesterday just one week after buying her and i am really impressed. To be honest the roads were a little wet and busy to give her a good throttling so i am hanging out for some sunshine. ( awesome summer ! ) i am negotiating an exhaust system for her and i am torn between the Akro evo and the Austin racing. Both are the same price, however i am continually being told the Arrow evo ti makes the most power ?? I would get the Austin gp3 full system if the claims they make more power or even the same as the Akro are correct and not bs. Any one other than Austin racing have proof that the gp3 system makes the same power as the Akro or Arrow ??