ISR 4-2-1 Tubular Header for Nissan 240SX KA24DE 1991–1998 | 3” Flange Tuning Suspension the internal nubs inside the

the internal nubs inside the cap must be trimmed back before fitting

Can I run these headers with a stock catalytic converter

32-Way Rebound Damping AdjustmentFine-tune suspension rebound speed to match daily driving comfort or more aggressive performance needs

The flat mirror surface gives you true-to-distance reflection without the bubble or curve distortion you'd get from a convex wide-angle

Stainless steel has solid heat tolerance for exhaust applications

ISR 4-2-1 Tubular Header for Nissan 240SX KA24DE 1991–1998 | 3” Flange Tuning Suspension the internal nubs inside theUnlock better exhaust flow, improved throttle response, and stronger mid range power with the ISR Performance 4 2 1 Tubular Header for the Nissan 240SX KA24DE engine. Designed as a direct bolt on replacement, this header features mandrel bent stainless steel tubing and a 3 inch collector flange, allowing easy fitment with your factory catalytic converter or any aftermarket test pipe and exhaust system. Whether youre building a track car or upgrading a