John, sorry no website. What I have been told is the 964 bolt holes in the b piller and the sill are about 2 " further apart than on the 89 and older 911 cars. I don't make a part that will fit . The bolt holes on the part I make are about
30" apart {adjustable} if that works for you the only other thing I would wonder about is if the bars would clear the seats where they angle down.

Jerry

 

I've got over 75 track days in a pretty well-developed Targa, IMO. I've never felt compelled to acquire these. Spend your money on training, and then springs/shocks/tires. I'd seriously doubt you'll outgrow the chassis.