i have a 2015 STI. trans and diff bushings is really nice, definitely a good buy. On the STI and older WRX we have 24mm front sway bar, but only 19mm in the rear. The 2023 WRX has 24mm front and rear, so no need to upgrade the rear sway, but the sway bar bushings have a lot of slop. Your's being low milage might be ok, but when they get older the slop is horrible. There's a known issue with oil pressure drops during turns in to 2022+ BRZ that may also be present in the '22+ WRX. worth looking into. There's some great content on RUclips by Ansix Auto and 900BRZ covering the issue and results from different solutions. Oil cooling is not really an issue per se, but anecdotally many people on forums notice much better reliability from adding an oil cooler. Subaru started adding factory oil coolers as a means of addressing the blown head gasket problem, so more cooling couldn't hurt as long as it's thermostatic. If nothing else I'd recommend at least monitoring oil temp/pressure, especially in AZ.
Appreciate the good info! Oil temps were running around 221-223° with outdoor temps over 100° here. Now with temps in the 70’s it runs around 212°. Thanks!
i have a 2015 STI. trans and diff bushings is really nice, definitely a good buy.
On the STI and older WRX we have 24mm front sway bar, but only 19mm in the rear. The 2023 WRX has 24mm front and rear, so no need to upgrade the rear sway, but the sway bar bushings have a lot of slop. Your's being low milage might be ok, but when they get older the slop is horrible.
There's a known issue with oil pressure drops during turns in to 2022+ BRZ that may also be present in the '22+ WRX. worth looking into. There's some great content on RUclips by Ansix Auto and 900BRZ covering the issue and results from different solutions.
Oil cooling is not really an issue per se, but anecdotally many people on forums notice much better reliability from adding an oil cooler. Subaru started adding factory oil coolers as a means of addressing the blown head gasket problem, so more cooling couldn't hurt as long as it's thermostatic. If nothing else I'd recommend at least monitoring oil temp/pressure, especially in AZ.
Appreciate the good info! Oil temps were running around 221-223° with outdoor temps over 100° here. Now with temps in the 70’s it runs around 212°. Thanks!
Such a badass car good job man looks fantastic