Our K Swap stainless steel 4-2-1 header for the 1982-1994 BMW 3 series (E30) features stepped primary runners and extra-long secondaries that follow the factory dual-exhaust routing.

Designed specifically for the E30 chassis, it ensures a perfect fit, clean finish, and hassle-free installation with no modifications required.

For maximum performance, we recommend pairing it with a custom 3" exhaust system and a flex joint between the header and exhaust. The header terminates in a universal two-bolt 3" flange, compatible with components from any exhaust manufacturer.