look down the page to #19 injectors. Lots of info. Short answer is they are replacement injectors that match up well to some, repeat, some of our cars. When used they like a 3.5 bar FPR in my experience. I don't know about your car in particular. there is a site, www.fiveomotorsports.com or something like that where you can go and find the info.
Mike Holbrook
Meridian, Idaho
1992 535im, 17", Euro M5 Throwing Stars 8's & 9's, FK-451 235/45s & 255/40s, M5 Sway Bars 25/20, Conforti chip, Lowes Ram Air, glass sunroof