i have a set of 1978 cb750k 4 into 4 pipes and the baffles are just torn up, pretty rusted and rattling around inside the pipe so i've cut the end of the pipe around the baffle, leaving a slightly smaller than 2" hole. i am looking to get some really inexpensive baffles to go into these pipes and i'm wondering if anyone could point me towards a place to get some cheap baffles?