Hi there, I have a 2000 year Suzuki intruder 125 completely standard and have just put some universal slash cut exhaust pipes on it I left the baffles in the exhaust, the bike feels so much more slow to ride and wont reach the top speed it used to with the standard exhausts on it but I was told this was because of the loss of back pressure the bike is over fuelling and i should get some less restrictive air filters to increase the air flow to improve the performance. just wondering if this is correct and if not what should I do??? many thanks Joe.