ISR Performance Series II - GT Single Exhaust System - Resonated - 89-94 Nissan 240sx (S13)

If you're looking to give your 1989-1994 Nissan 240sx (S13) a more aggressive sound and improved exhaust flow, the ISR Performance Series II GT Single Exhaust System is a solid option. This cat-back system replaces the factory muffler and piping from the catalytic converter back, aiming to free up some horsepower and deliver a distinct exhaust note.

This Series II system features a resonated design, which helps to tame some of the rasp and drone that can come with aftermarket exhausts, making it a bit more comfortable for daily driving or longer trips. It's constructed from stainless steel, which offers good resistance to corrosion and should hold up well over time. The single exit configuration is a popular choice for the S13 chassis, offering a cleaner look and reducing weight compared to dual exhaust setups. Installation is typically a bolt-on affair, connecting to your existing catalytic converter, though you'll want to ensure all hangers and connections are properly secured for optimal performance and sound.

When installing this system, pay close attention to the routing to ensure it clears the chassis and suspension components. A proper fit is key to avoiding rattles or unwanted noises. This exhaust is designed to bolt directly to the factory catalytic converter, making installation more straightforward. You'll notice a deeper, more pronounced exhaust tone compared to stock, and potentially a slight improvement in throttle response due to the less restrictive design.