I replaced mine last night with a modified version purchased from Zeckhausen Racing (zeckhausen.com). IMO, Zechhausen's is a vast improvement over the version that I purchased from Bavarian Autosport and had installed over the weekend when I put in the Rogue shifter. Specfically, the Zeckhausen version has a visibly larger internal orifice and, most importantly, the car drives immensly better.

But for the fact that (i) my pressure bleeder wigged out and spewed 2/3 of a quart of brake fluid down my master cylinder and the brake fluid started spewing from several orfices in the underbelly pans and (ii) I found out at 10:30 pm that I don't have a 7 mm box wrench needed to bleed the system (do now, thankfully Advance Auto Parts is open till midnight), it went well.

 

Thanks for the input on the one from Bavauto. I had seen it was different looking than the OE valve (as modified by Zeckhausen), but never would have thought about a performance difference.