Ok, i picked up my first racing mower and it has a 44 intek in it. It has two single pipes coming out of it now and I would like to change over to a two into one exhaust. It has a cheetah cam in it along with some other goodies. I have no idea what size pipe I should use or what size the tail pipe should be after the collector. Can I or could I use the stock pipes off another 44, or is the ID too small? Pictures and sizes would be great to get some ideas. Thanks, boxcar