The GKTECH braided brake lines are a direct replacement of the factory lines and are stronger (read: more reliable) than the factory rubber lines which are prone to breaking but they also eliminate the spongy feel of the standard brake lines. The front lines are also longer to compensate for big brake setups or cars with more steering lock (which you would see stretching with the factory line) The GKTECH braided brake lines are assembled by us in-house in Australia using stainless steel fittings, stainless steel braided line with a Teflon inner tube and PVC outer for protection. We have included a custom machined brake line block which sits in the OEM location which eliminates one long line which has tendencies to get caught on the tire or other suspension components. This piece keeps the brake lines short and concise. Now with the ability to choose the option of keeping your OEM hard lines, or deleting them completely from both the front and rear brakes. Vehicle Compatibility: - Nissan R33 GTS-T Skyline