ADM seats for me, also FTL

JDM seats slot right on in, and have lovely wings that hold you in place in any hektik action you get yourself into Ask Gilly about JDM hugs, making you feel good inside

Otherwise, any aftermarket seat will need to have their rails modified. Some (taller) people go to the lengths of bolting their seats directly to the floor, but if its going to be street drivin probably not the best option...