The mechanic at the alignment shop told me that my suspension on the front passenger side might be sagging leading to the car pulling slightly to the right.

I'm running coilovers so my buddy told me that coilovers can't sag...

We turned the coilover about a 3/4 turn to sorta see if it'd make a difference but it didn't.

Anything I should check in particular?

(I'm not very technical when it comes to suspension)

 

Hmm... could the coils be at different heights? Tire pressure?

 

Uneven adjustments on the coils maybe the problem.

 

I'm not a coilover expert either, but the minimum height specs are about 14.1 inches from center front wheel hubs to body, and about 13.9 inches on the rears.

It seems like that's something a novice could check, measure, and change before doing more wheel alignment.

Also, the caster might be less on the right.

After my alignment the left was under 5 deg, and the right was about 6.5 deg.

Considering the crown on hwy's it seems to track straight, but has a slight left turn preference especially when hard on the brakes (perfect for all the u-turns under overpasses).

 

Checked the heights of the coilovers and the fronts and rears match...

Gonna double check tire pressure, but I'm pretty sure that's not it :/

 

By adjusting the height of your spring, you altered your alignment. Before going any further, put the ride height back to what it was when you got the alignment.

Would you happen to have the details of your alignment (camber, toe, caster)?

 

I didn't change anything except turning the front passenger coilover a 3/4 turn.

I do have the details for the alignment:

Front left:
-3.8 camber
7.8 caster
0.09 toe

Front right:
-3.9 camber
8.1 caster
0.12 toe

Front total toe:
0.21
Steer ahead:
-0.01

Left rear:
-4.0 camber
0.16 toe

Right rear:
-4.1 camber
0.21 toe

Rear total toe:
0.36
Thrust angle:
-0.03