@@daskamu so i just did this last weekend, if you slit the flange you can then bend it up and it will break off, this will give you enough purchase area on the subframe to just push the bushing out whole with a shop press.. eliminating all of the burning and such. the only subframe bushing you will need to actually cut on alot is the rear dif, just be careful so you don't cut into the aluminum and ruin your subframe like this guy did. Also, and another reason to follow my advice, heating up and cooling aluminum will make it brittle, avoid this.
Do you have a distinct whine coming from the rear as you increase speed. I was thinking solid subframe and differential bushings from SPL will I get this whine. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-cOSiVcOsEjU.html The time frame where I hear it start is at 15 seconds in and starts at 30mph. Will I have to deal with this?
Unfortunately, yes. This is strictly a drift car but the 2 times i've driven it on the street are horrible between that and the lightweight flywheel you can't hear yourself think. It's the diff bushings not being able to absorb harmonics from the transmission output shaft & driveshaft. I first thought my trans was going to explode until i realized this is just how its going to be lol.
The differential brace is very nice because the stock bushings tend to tear themselves apart while drifting so this brace distributes the load evenly. pretty essential for dedicated drift cars but not needed.