Wow
First off I should admit that I purchased this item with ulterior motives. I have both 957 and 958 generation Cayennes and wanted to extend the seats on both. I realized that EMS only made a model for the 958 so I bought it with the idea that I would hope and try to fit it to the 957 but if it did not work I could always just use it as designed on the 958. Well it worked! It bolted right onto my 957 seat mounts in minutes and the results are awesome. I am 6'6" and my legs can't reach the pedals when I place the seat all the way back. Granted my car is now a 4 seater since no one with legs will ever fit behind me but that's OK. As I finish typing this review, I will now be ordering a second set for the 958 for reals this time.