Originally Posted by KrnAndy

there's tons of threads about this.

long story short, OEM master and slave cylinder sucks, some people will blow their slave couple thousands miles off the lot, some last a bit longer.

slave cylinder is more expensive to fix because it's located in the bell housing.
so most swap out the clutch and flywheel while the transmission is out (to an aftermarket one)

for the slave cylinder you have two options other than back to OEM.

HD CSC, I believe Zspeed performance sells them.
uses better material, and SS clutch line (get with insulated wrap)
This will prevent the line from getting to hot in the transmission.
heat is what usually causes the slave to blow a seal.

OR

CSC elimination kit. a few different companies make them for the car, read reviews on them, I went the HD route so idk which ones are reliable.

the elimination kit will eliminate usage of the CSC in the bell housing, only thing is, over time you will need to adjust the length as your flywheel get's thinner? (not completely sure) *It's a bit more expensive but more reliable imo


as for your master cylinder
RJM makes a HD CMC upgraded version. buy that and you'll be set.

he also came out with a clutch pedal kit which helps pedal feel and reduces pedal travel, stock has a long travel which also helps aid in seals to blow.

PS, usually you'll want to swap out the CMC and CSC at the same time. if one blows, it will contaminate the line and cause premature failure in the other part. and when you replace that at a later time, it will cause the same thing vice versa