I put Vortex clip-ons on my '99 S3. They're amazing, but it's really hard on the back. The Vortex are full race bars, so they're very, very, very low. It handles awesome in the canyons, but I feel like a pretzel whenever I'm not attacking the twisties. I ended up putting some Renthal dirt bike bars on. I left the clips on the the bike and I can swap out the bars in about 30 minutes. When I do a track day, the Vortex bars are going back on, but for normal riding it isn't worth the pain for me.
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