E30- Question about upgrades: Radiator & Brakes

[ginonj]

I have researched but some information is outdated. I am building my e30 to be a spirited driver and also plan on Auto X, and may even assume the responsibilities as my daily driver. I am keeping my m20 in at the moment, so power to weight is not issue for bigger brakes, and hopefully my choice of radiator can work. Note: This is not a dedicated track car.

I now am left with with two questions with the radiator and brake upgrades I am considering. For the brakes, I came across on CaTuned's website the stop tech brake kit. Link is below for you to see. I also am considering the Mishimoto rad upgrade. I want to know if these two products are worth to handle what I will be doing with the car. I already have a spa 16" electric fan ready to go.
What do you think?

Stop Tech brakes: Front and rear rotors, Ceramic Pads, and the wear sensors.
Should I consider some other kit or combination?

http://www.catuned.com/catuned-brakes-brake-kit-e30

Mishimoto Rad- How has your experience been with this rad? Does it leak? How does it work with your m20?

http://www.catuned.com/catuned-mishimoto-radiator-cooling-cool-bmw

Thanks in advanced for the replies.

[nando]

if your motor is stock you don't need a special radiator, the stock one works fine. those things seem like they fail left and right anyway.

as far as brakes, those are probably decent, but you don't really need slotted rotors and ceramic pads are better for dust than performance.