I'm a very firm believer in you get what you pay for. I wouldn't recommend sticking a $50.00 flywheel in any car. It is also not exactly a lot of fun to replace a flywheel, let alone having to do it twice to replace a low quality part.
Factory used the Sachs flywheels ( most that I have seen are under $75.00 ) in the t5. Normally I would recommend to go with what was used oem, but there are much better options than the sachs. Remember, spend more now, to save a headache later.
I just did a spec clutch kit and spec steel flywheel and couldn't be happier ( Well, should have gone with the aluminum one ). Much better than stock. Some stuff you can get away with going a little cheaper on. I wouldn't suggest a flywheel being one of them.
What is the most you are willing to spend? And what will the car be used for?
---------- Post added at 09:45 AM ---------- Previous post was at 09:40 AM ----------
The only time I used auto-parts store is when I'm using O'rielly's, I like them much better than auto zone and pep boys. Advance auto, at least around me, is the worst place you can go. Almost every part I have gotten from them, tools inlcuded, has failed.
Also when ordering from those places I always suggest getting the motorcraft parts if possible, as they are much higher quality than their cheapo store brand parts.