Which coolant transfer pipe would be the best (as in I don't want to re-open her up to change O-rings for it) from these 3 options:
A.G.A. - the most expensive, maybe the best? (has Viton O-ring)
Bimmerpipe is the 2nd as price reference
URO pipe is the 3d in terms of price.
I am interested in the quality of these collapsible pipes. I know AGA makes good quality parts, but if URO is also a good quality part that will outlast the vehicle, I'd rather save a few hundred bucks. If the URO O-rings aren't up to snuff, I'd rather buy the AGA or the Bimmerpipe - I really don't want to re-do this job twice.
The OEM coolant transfer pipe holds up to about 100k miles or so. Any of these above brands should hold up at least as long. Is there anybody who has these for more than 100 k miles?