The 2020+ GT500 Tremec TR9070 DCT transmissions are excellent. One small issue is the design of the transmission hard lines and seals. Many people have had them warrantied for them to only leak again. The manufacturing process is flawed and inconsistent. SPE decided to make a seal kit to solve this problem. Our billet seal kit is designed to eliminate any kind of deflection caused by the factory line flange. It is also a direct replacement to the factory seal; a 100% bolt in installation. No need to cut and adapt your factory lines.