TRD Sway Bar installed at dealer opinions..?

[NZ-FE Vios]

I have a 15% off coupon on all "Genuine Toyota Accessories from the Parts Department". I contacted a few dealerships and the best price I found was 25$ installation fee with the 15% off only applying to the 189$ part itself meaning 160.65$ for the part plus the installation totaling 185.65$ + 8% PA sales tax.

So a grand total including tax of 200.502$ installed by Toyota. Is this a good deal?

Obviously the part is very easy to install and the hardest part is jacking and removal of wheels (which is just to make the job easier).

In comparison to 166.25$ shipped TRD sway from ToyotaPartsPeople.com, is it worth paying 34.252$ extra to have installed by a dealership?

If you don't think its worth it, do you have any suggestions on anything else from Toyota that would be worth using this coupon on? (keep in mind, the coupon requires installation as well, and 200$ is at the max of what I want to spend as I have 59 payments left)

I really value the opinion and knowledge of the forum and thank y'all in advance.