The story behind this goes like this...I bought a Reedjet about 15 years ago, wanted to do something different, so I went the q98 route for enduro racing. Used it for a few years and sold a bunch of my stuff to some locals that had sprint cars and a back yard track. Last year, I bought the reedjet back and some other parts that I had sold "them". a few days ago I asked if he still had the old pipe that I sold him with the reedjet. there were a pile of 3 and this was one that Im pretty sure the old Q98 that I bought many years ago. The other 2 had oval holes and something kinda like L series RLV''s. I know buller didnt make many pipes with the oval hole.