I'm missing the brake booster/master cylinder in my ef shell and I'm wondering what would be compatible with it? I saw a gsr booster/cylinder FS here, would that work with the car? Or am I better off buying a brand new booster/MC?

 

Better off getting one for your specific brake system.
Si has the same brakes as the DX and LX sedan, CRX, and hatch so you have a lot of cars you can choose from if you go with a used ro re-manufactured unit.
No real sense in going with brand spanking new.

Adding a larger M/C is not an upgrade.

 

Okay, thanks for the info! I just wanted to get the gsr one because it was 30 bucks lol but I'll just wait until I find something made for my car. btw I live in granada hills too

 

I'm almost sorry to hear that =/
I was looking at a crime app on my phone and just a couple weeks before the holidays, 3 cars disappeared all on the same street (within 4 blocks of each other).
That was just a few of the things... depressing. Nice quiet neighborhood and people gotta go steal.

 

the EG6 booster and M/C fits perfectly.