tubing

So does anyone know who makes the best clear tubing for the front and rear fluid reservoirs that don't change colour over time from staining and all. I would also like a link to where I can buy it (north american link). Thanks :)

I have disected a pair of sbase model muffler for R&D purposes. for comparison, I'd like to know the internal tubing size of Termi mufflers, but cant afford to buy and disect some! Does anyone know, or is willing to measure, the tubing diameter where it comes out the front of the cannister and...