Let me chime in on my experience with suprasport. I bought a high pressure steering line from them, roughly $120 US and it was junk (defective). Long story short, I installed their high pressure steering line and stripped the banjo bolt on the steering rack forcing me a costly repair.
I didn't bother to return it or nothing as I couldn't be bothered - so my loss.
Dealing with them is alright; however, I recomend dealing with a larger store that can attend your problems in a timely fashion if any arise. I had no problems ordering through suprasport and my high pressure power steering line came in a timely fashion b/c it was in stock.
There are mixed opinions on that store and if you do a little digging, you will find that its history wasn't all that great with customer service etc...