BMW Exhaust Headers
Shop BMW exhaust headers and replacement exhaust manifolds for selected naturally aspirated inline-six applications. A vehicle-specific header replaces the factory manifold section and can support smoother exhaust flow for an exhaust repair, restoration, or performance-focused build.
This collection includes BMW headers for selected E30, E39, E46, E82, E85, E90, and E91 applications. Because one BMW chassis may be offered with multiple engines and exhaust layouts, always confirm the engine code, model year, transmission configuration, and complete product fitment notes before ordering.
Shop BMW Headers by Engine and Chassis
BMW exhaust headers are engine- and chassis-specific. Use the table below as an initial guide, then review the complete fitment information on the individual product page before ordering.
| BMW Engine | Selected Applications | What to Confirm Before Ordering |
|---|---|---|
| N51 / N52 | Selected E82, E85, E90, and E91 models, including certain 128i, 328i, and 330i applications | Confirm the exact engine code, model year, chassis, transmission configuration, and product-specific fitment notes. Similar-looking BMW models can use different exhaust layouts. |
| M20 | Selected classic BMW E30 models | Check steering clearance, the downstream exhaust connection, and whether the vehicle retains its original engine and subframe configuration. |
| M52 / M54 | Selected E39 and E46 inline-six models, including certain 323i, 325i, 328i, and 330i configurations | Match the engine code, production year, and flange or mid-pipe connection. Compare dimensions carefully on swapped or modified vehicles. |
The model name alone is not enough to confirm fitment. BMW may use different exhaust layouts, oxygen sensor locations, flange designs, and transmission configurations within the same chassis range. Always verify the full product listing before purchase.
BMW Exhaust Header FAQ
Do BMW headers replace the factory exhaust manifold?
Yes. On compatible BMW engines, exhaust headers replace the factory exhaust manifold section and route exhaust gases toward the front pipe or mid-pipe. The outlet design and connection point vary by engine, chassis, and header design, so always check the product-specific fitment details.
Will BMW headers cause a check engine light?
They can. A check engine light may appear if the installation changes the location, operation, or monitoring of factory oxygen sensors or catalytic converters. Results depend on the vehicle’s emissions equipment, ECU calibration, installed header design, and local requirements.
Do I need a tune after installing BMW headers?
A tune is not always required for the engine to run, but some setups may need calibration changes after an exhaust modification. Whether tuning is appropriate depends on the engine, the header configuration, whether required emissions components remain in place, and the other modifications on the vehicle.
Can I install BMW headers without removing the engine or subframe?
It depends on the BMW engine and chassis. Some header installations can be completed with the engine in place, while others have limited clearance around the steering shaft, engine mounts, subframe, heat shields, and exhaust connections. Review the installation requirements for your application before starting work.
Should I replace gaskets and hardware when installing BMW headers?
Inspect the exhaust gaskets, studs, nuts, clamps, and oxygen-sensor seals during installation. Replacing worn, corroded, or damaged hardware can help reduce the risk of exhaust leaks, loose fasteners, and repeat labor after the headers are installed.
Are BMW exhaust headers legal for street use?
Street-use legality depends on the exact product, the vehicle’s remaining emissions equipment, and the laws where the vehicle is registered and operated. Headers intended for off-road or competition use may not be legal for public-road use. Verify applicable federal, state, and local requirements before purchasing or installing.