yeah, for sure do both if you can, but my own opinion ranked in order for bank/buck for rear bracing here is what I personally think:
1. the ECS rear subframe collar copy of the tyrol kit at $40 and 1 hour install time seems like a slam dunk just because so cheap and easy and makes noticeable improvement
2. Stern brace because is only $150 and so easy to install
3. then these made more improvement then I expected and are also only $100 and extremely easy install, but the fitment was terrible (like most ECS parts) and I had to dremel two of the holes a bit to get it to fit my car but so cheap and easy and they really help keep the rear control arms from shifting, you will notice the improvement the second you back out of your driveway immediately. Be careful not to over torque the two smaller bolts in the middle of the car or you will regret it.
https://www.ecstuning.com/b-ecs-par...-set-wrinkle-red-powdercoat/020825ecs01-02~a/
the three parts above for $290 total and a few hours to install all of them seem like a slam dunk to me. They made an enormous improvement in how my car feels when going fast but also it just feels way better around town over potholes and stuff and even made my car feel a little quieter somehow
4. then Eurosport rear X brace makes a very noticeable improvement, maybe more to similar vs some of the other items above, but $200 and bit more time to install is only reason why last, but love mine and can remove with one allen wrench I keep in the glovebox in <4 minutes if ever need to fold down the seat.
but all of these above together for <$500 total and maybe cheaper on black friday will make a massive difference on your car
I also overpaid for the two Leyo braces on the bottom and didn't notice any real improvement from them so i can't recommend those.
for the Front:
1. strut tower brace, immediate improvement and helped ride quality and no downside, also easy install and not expensive.
2. super pro control arm bushings in stock control arms, these were maybe a mild improvement in corner grip and reduced wheel hop but really decreased ride quality more than expected.
3. Tyrol deadset front kit. certainly made an improvement but less than I expected and this was expensive.