1997-1998 Porsche 911 GT1 17" Polished Billet Aluminum Radiator Coolant Overflow Puke Tank, Carrera, 4S, Targa, Turbo, 4, SThe Zirgo Standard Overflow Tank Is A Functional Treat For The Eyes! This 17" reservoir is for your 1997 1998 Porsche 911 GT1 and mounts anywhere in your engine bay using beautifully crafted adjustable billet tank mounts. No need to drill holes or perform unnecessary fabrication to mount this tank, just adjust the clamping bracket and secure in seconds! Zirgo's unique internal adjustable overflow system eliminates the unsightly overflow tube from the