I just got a kz750 and it has a 4 into 1 exhaust on it. The guts have been removed on the exhaust so it is literally a straight pipe. Is that going to hurt the motor to run it like that.
By the way, its a gutted Mac 4 into 1 system on it. I have a new Mac can I put on, but I'm not happy with the sound I get. Can a kerker fit on that header and where could I find one.
