My strong points on tuning is fabrication & suspensions, I did my own coilover, big brake up grade brackets, and chassis bars for my AE86. I'm getting better on welding I stitch weld my chassis all around. I'm weak part is electrical like wiring and program a stand alone ecu, I don't use piggy back any more but i know how to program them. mechanical I'm ok like rebuild a motor or back lash a LSD.
here are some of my work
Big brake up grade from a FC3S TII to my AE86
DIY coilover