noob here! quick question!

looks like Eibach pros and bbk intake. no underdrives.
Also if you are mechanicly inclined, jack the rear up, put it in neutral, mark a spot on the drive shaft and tire, spin the tire one acurate revolution and count the revs on the driveshaft. 3 and 1/4 turns =3.27, 3 and 1/2 turns 3.55s and so on