lol @ ur sig

 

hah, i don't think people are catching on to this!

 

It will have 0 effect on your autocross stopping power. The only benefit to high BP brake fluid is that it tolerates more heat before boiling. That's a concern on the track, but brakes never get hot enough during an autocross for this to be an issue.

However, if there is air in the system and you bleed this out during the fluid change, the brakes will feel more firm - always a good thing.

 

this may be true to an extent but keep in mind im not running the s2k, im running the supra, so when we run a 50-60sec course and we get 7-10 runs I'm on the breaks very hard again idk if it will make a big diff or not, it will prolly seem like it to me bc im also doing new pads and my new cryo treated power slots at the same time. either way i will be glad to change the fluid out also, plus we are talking about making a run to the dragon with the ohio group and we will be doing some track days with the car next month. im excited lol

 

Not so (off subject) -
Most people run OEM Honda MTF. The latest iteration is much better than the original. GMSMFM is not designed for, or recommended for the S2000. It has been used by a number of folks to help with 1-2 grind issues, but you are taking a risk by using it. If your car has never had any shifting problems, stick with Honda MTF (green label).
While I believe Redline makes a great synthetic motor oil, I've tried and was not impressed with their MTL, or their gear oil.
Many folks have had great luck with Amsoil full synthetic MTF. I run a mixture of 75% Amsoil MTF and 25% Honda MTF and it has worked the best. I'd steer clear of GMSMFM.

Back on subject:
I've used ATE Super Blue for the past 4 years in both my clutch and brakes, and it is outstanding. It lasts significantly longer and retains less water than OEM.
I'm about to switch to ATE TYP200 due to the fact Super Blue is not DOT approved for Florida - due to the color of all things. TYP200 is chemically identical to ATE Super Blue, only it's amber in color. A lot of folks that track their cars alternate between the two because it makes it easy to determine when all the old stuff is out by the color change.
You can pick up both ATE Super Blue and TYP200 online at Tire Rack.

 

+1 for the ATE Super Blue and Type 200 Amber combo for full brake bleeds. You can also try a motorcycle shop for racing-type brake fluids like the ATE and Motul stuff.