Late to the party but... honestly, I've spent way too much time testing these on my own X3s over the years. You might find it useful to check out the comparison tools on *RackAttack*... they've got some legit technical breakdowns on wind drag and noise levels that are way better than marketing fluff.

Unfortunately, the OEM bars are basically just rebranded older tech and I've had issues with them being kinda *loud* at 70mph. If you're looking for a better balance of price and silence, look at the Turtle Air1 Silver Roof Rack for BMW X3 G01. They’re basically a steal at around $175 compared to the $500+ you'd spend on the big brands. They sit lower to the roof which reduces that annoying whistle significantly. Plus, check FB Marketplace... people sell YAKIMA JetStream Black Crossbars 60" all the time for like $200 when they trade in their cars. gl!

Respectfully, I'd consider another option because while Thule is nice, Yakima JetStream Bar 50 inch is wayyy quieter, and Malone AirFlow2 Universal Roof Rack 50 inch is basically the best budget choice. OEM bars sit way too high and look kinda goofy imo, so just save the cash for the actual trip!!

> Has anyone tried Thule or the OEM BMW bars? Which setup offers the best balance of aerodynamics and weight capacity without too much wind noise?

Oh man, i get it... nothing ruins a road trip like a constant whistle above ur head lol. I've used both over the years and honestly, the Thule WingBar Edge Roof Rack System for BMW X3 is the clear winner for noise. The OEM bars, specifically the BMW X3 Roof Rack Cross Bars (82712414373), are super sturdy and cheaper, but they sit kinda high which creates more drag and wind noise.

The WingBars use an aero shape that's basically like an airplane wing, so they're lowkey silent even at 80mph. I've had mine on for like 4 years now and im super satisfied. They're basically the industry standard for a reason... plus the T-track makes adding gear super easy. Installation on the factory rails is a piece of cake. If you want the best balance of looks and quietness, Thule is worth the extra cash. gl!

Lol I was literally about to post the same thing. Glad someone else brought it up.

Just stumbled on this thread and wanted to add a different perspective from a market research angle. When you look at the technical data for drag coefficients, most people focus on the bar shape, but the mounting height is actually the biggest factor for noise on an X3. I’ve spent a lot of time looking into the engineering behind Rhino-Rack Vortex StealthBar vs the big names. Rhino-Rack uses these VGS (Vortex Generating Strips) that are designed to break up wind flow—basically the same tech used on airplane wings. It’s wayyy more effective than just having a 'tear drop' shape. Also, look at the Yakima RailBar if you want that super integrated look. From a practical standpoint, these flush-mount systems win because they eliminate the 'tunnel effect' between the bar and the roof where air gets compressed and starts whistling. Anyway, the market is moving toward these low-profile designs for a reason. TL;DR: Go with a flush-mount system like the Rhino-Rack StealthBar. You lose a couple inches of mounting width, but the reduction in drag and wind noise is massive compared to any through-bar setup.