The B-13 is not the strongest of chassis. The weakest point is where those large bolts are on the lower control arm. The flex from that point, on the wheels affects hard acceleration, heavy braking, positive and negative camber in hard cornering.
On acceleration and braking the the control arms flex towards each other causing toe change. This also makes torque steer worse. On hard cornering the negative camber you dialed in just becomes positive camber because of the flex. like a sway bar it's just along for the ride while driving in a straight line. Triangulation is not necessary but tying into the crossmember will help with both strength and clearance. (flexes in on acceleration, out on braking)
Tying into the crossmember will require some welding. Since this a budget bar this is the best option. This bar will make the steering crisper and more responsive.
A note to those who run without a front sway bar. I will by no means infringe on driver preference or comfort. But if you run without a front swaybar, put on a lower cont. bar. you just may put it back on.