Review on Universal Side Rail Mounted Roof Bar - Apex RB-1006-49, Black by Adam Webbie

Just got these today and installed them. They fit really well and tighten down fairly easily on the side without the lock. The side with the lock doesn't really have a good way for you to grip it so tightening it was a bit of a challenge. After driving around with them today, both in the city and on the highway, I haven't been able to hear any whistling even with no music on or AC. They haven't slid at all and seem fairly sturdy, although the paperwork that it came with stated that they are "lightweight steel" with as 150lb capacity.