*Anything* is better than the stock tires
. The V12s aren't great, but certainly much better than stock. If you still have a choice, again, Star Specs or RS-3 are much better.
Installing camber plates will require a new alignment. So if you plan on doing camber plates soon (which you should
), don't worry about the alignment first. If you're not doing camber plates soon, get an alignment first and ask them to pull the alignment pins on the top of the shock towers.
Ask Seth for his "go-fast" alignment
The 135i (and most recent non-M BMWs) has a very neutral camber setup (<1 degree). Camber plates allow you to adjust camber to a much wider range. For autocross you'll probably want around -2.5 to -3 degree camber out front.
This will do 2 things:
1. Your car will turn-in much quicker and handle better
2. Your tires will wear more evenly and you won't ruin the shoulders on your tires.
It quite transforms the handling of the car.
Mine are from TC Kline (who've just released a new model that looks interesting):
But most here recommend Ground Control:
I really would take it easy with the mods in the beginning. Trust me, between stickier rubber and *maybe* camber plates, you'll improve quite a bit - especially with additional seat time.
Absolutely! I've done my first auto-x about 2 years ago and haven't missed one since
I'm very happy to help out.