GReddy Circuit Spec Center Pipe for Nissan GT-RGReddy Circuit Spec Center Pipe SpecificationsKnown worldwide for its exhausts the Japanese manufacturer GReddy presents the Circuit Spec center pipe for Nissan GT R R35 with VR38DETT engine. This Y pipe type tube removes the standard secondary catalyst and improves gas flow engine response and overall performance. As it removes an important part of the car's emission control system its use is prohibited on open roads. This part is made of polished