I just used my last spare. I have to pass CA Emmissions this month. I've been messing around with makeing an improved version. I cut the poorly designed flexable section out ,,,and I have section of flexy from a Toyota egr tube. I just need to weld it. I can't find anybody around here that can do it. It's some type of stainess( old timer here at NAPA knew exactly what kind). The pipe is 17mm diameter, so if you have to end up doing this , thats what to look for in the junk yards.
I checked net sites for material but could only find it from manufatures in India and I would have to buy an entire shipping container full. There's alot of folks on here alot smarter than me, so maybe an solution will pop up.