ISR SS Series II EP Single Tip Blast Pipe | Nissan 240SX (89-98) (IS-S2EPSNR-S13/S14)1989 1998 Nissan 240SX Series II EP Single Tip Blast Pipe Exhaust System by ISR Performance The ALL New ISR Performance Series II EP Single picks up where the hugely popular EP Dual left off, providing an incredibly stylish and aggressive exhaust system at an affordable price. Constructed of high quality stainless steel, the EP Single utilizes 3" piping for the mid pipe and the majority of the rear section before expanding to a 4" pie cut, turn down