- ISR Performance 4-2-1 Tubular Heads for the Nissan 240sx KA24DE 91-98 year models.
- Expanded to 3" Flange to enable easy bolt-on application to stock cat or any aftermarket test pipe and exhaust system.
- Solid stainless steel construction for long-lived durability.
- Professional, precise welds for smoother flow and no leaks.
- Manifold and 2 bolt gasket included.
** All ISR Performance Products are Designed for Off Road Use Only **