Aftermarket stainless steel clutch lines may look similar, but they are not the same. Every Galfer stainless steel line is made with virgin grade PTFE inner core, 64 strand braid, and pre-positioned Banjo fittings. Stainless Steel lines are typically the first upgrade you should make as stock rubber lines will break down and expand, causing a spongy feel or worse. Steel lines eliminate expansion which results in consistent feel and performance. Manufacturer's lifetime warranty.