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Originally Posted by MineralWhiteF80
I think that's a solid move. The e92 body shape doesn't make it easy to install a big rear wing or massive balanced downforce without A LOT of effort. I think Zebulon is the best 'high downforce' setup with seemingly proven results. The stock E92 side view has the same shape as the cross-section of an airfoil (wing), so naturally, it wants to FLYYYYY!
The GTS and GT4 setups designed by BMW Motorsport do not add much downforce. However, they ARE good at eliminating lift at higher speeds and providing a little positive downforce. Interestingly, it seems the e92 GTS downforce is only 6 lb front/41 lb rear less than a 997 GT3RS with it's bigger rear wing, both a 0.33 drag coefficient. Curious how the GT4 wing/splitter/canards would compare against the 997 3RS.
https://www.m3post.com/forums/showthread.php?t=402401
https://www.m3post.com/forums/showthread.php?t=1725500
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The BMW MS GTS/GT4 add-ons don’t eliminate lift, they’re offsetting it with a minimal downforce generating wing and lip combo. To eliminate lift you’d have redesign the car, no?
Effectively those parts yield a more predictable experience at track speeds vs increasing grip.