Is this item universal?
Yes, 90% universal. It fits 90% of the cars on the road, the 4 bolt pattern is pretty universal. Click the PDF link below for the measurements...

Does this kit work with my OEM brake lines?
No. You can purchase one of our brake line kits to assist you, you have a few different options depending on your chassis. One being purchase our full brake line relocation kit or our DIY AN Brake Line Kit which allows you to bend and flare your own lines using the same high quality material we do.
MORE INFO on how brakes work, since this is such a debated product...
1) If you increase the diameter of the master cylinder you will REDUCE LINE PRESSURE WHICH REDUCES CLAMPING FORCE.
Example: Switching from stock 7/8" brake master cylinder w/ booster to a larger one, IE; 1" BMC, this yields into having to use a lot more leg effort to stop the vehicle and doesn't have that bite the 7/8" BMC has when it engages. Hence why we use the 7/8" Wilwood with our booster-less setup (explained above 2 or 3 times)
2) If you decrease the diameter of the master cylinder you will INCREASE CLAMPING FORCE, which is the ONLY part of braking that will make you stop quicker.
Example: If you have already upgraded to a larger brake master cylinder such as 1" over the stock 7/8" you probably noted a lot firmer pedal but more leg effort to come to a stop quickly, if you were to switch back to the smaller 7/8" you will feel that when the brakes engage they do so with a lot more bite then the larger BMC.
So you ask where’s the happy medium? Where is the sweet spot? For us and seemingly all other 500+ customers, we like the 7/8" BMC. Over any size we have tried. We've tested every size Wilwood sells. The pedal travel is absolutely perfect. This is subject to change with different pedal ratio's. This larger 1" master cylinder may be the perfect match for your vehicle.
For all the following vehicles, follow the link for our CB-U-BBE. This 1" master cylinder isn't the proper size for the best pedal feel and responsive braking.
Acura Integra
Acura RSX
BMW 3 Series
BMW 5 Series
Honda Civic/CRX/Del Sol
Honda S2000
Hyundai Genesis
Infiniti G35
Mitsubishi Evolution 1-10
Mitsubishi Eclipse, Eagle Talon, Plymouth Laser
Nissan 240sx
Nissan Skyline
Subaru WRX/STI
Subaru Legacy
Nissan 350Z