I've decided to upgrade to a 1" master cylinder and Integra booster from my 15/16" setup in my SiR.

My only decision now it where to get the master cylinder and booster from. I've found one or two on eBay used but always question buying used stuff that's so important.

Called the dealer and they want $400CDN for the master cylinder alone.

What's everyone's take on NAPA/Part Source brand new master cylinders/boosters or the rebuilt ones?

The only thing leaning me more towards buying new is the fact that it's a pain in the butt to change this stuff and I'd rather do it once and not have to worry about it.

 

what specific trim(s) have it?

well.. 98+ gsr+ right? Quick check of world pac and they have adler brand master but don't carry the booster.
really as for the booster, as long as some idiot didn't let a dying master fill it up with fluid they last forever. used is the way to go. I upgraded my 9" brakes to 10", 7/8 to 15/16, 10 years ago and got a junkyard booster. it is still doing just fine and I pulled everything this past weekend and painted the engine compartment and booster. no fluid was in it and it is just fine. and that is from a late 80's car.

 

Exchange yours for rebuilt, 400 is crazy. What is wrong with your booster and what is the difference between your booster and a 1"?

 

I would rather have your oem honda 15/16, then an rebuilt itr 1" from a parts supply store

 

I got a 1" MC from NAPA a few years ago, still going strong that was rebuilt from 15/16 so fit same booster and lines. That was for Integra.

 

The integra boosters are a little bit larger then the civic ones. I figured if I was upgrading to the 1" master cylinder might as well upgrade to the matching booster.

 

I don’t have any experience actually running a 1” MS, but the math behind going from 15/16 to 1” you loose some clamping force. I would defiantly run the bigger booster to make up for the loss in clamping pressure.

 

having gone through brake nightmares, buy an oem one. its more money, but it will last longer. any parts store units i ever bought never lasted.