Well, I can tell you DO NOT buy any Diablo wheels. They are some cheap crap. I bought some and they bent in a month and the chrome was chipping badly. These rims are a NO NO. My father drives my old SC 400 now, nothing on it besides my GS 17s. I think brakes are not only a great looking mod but functional as well. If you go with the big brakes (Supra) you will need to make sure they will clear your wheels.

Skulinex has HIDS retrod to his SC 400 and they look great. He comes to all the meets in Atlanta and they make a huge difference than the stock bulbs and even HID look bulbs.

I enjoyed 2 sets of Kumhos but paid a lil more this time for Yokohoma AVS ES 100s, excellent tires.

 

I have found this really, really old thread and maybe it should be a sticky cause it contains a lot of good information for new owners of SC300/400.

 

https://www.clublexus.com/forums/sc-1st-gen-1992-2000/95303-please-use-the-engine-section-read-this-sticky-read-this-sticky-read-this.html