This exhaust manifold header set is designed for listed 2006–2013 BMW N51 / N52 naturally aspirated inline-6 applications, including compatible E82, E90, E91, E92, and E93 chassis models such as 128i, 325i, 328i, and 330i.

Built from T304 stainless steel with mandrel-bent tubing, welded construction, and O2 sensor extension components as listed, this header set is intended as an exhaust manifold upgrade for compatible BMW N51 / N52 applications. Final fitment, sound, exhaust sealing, drivability, and performance results may vary depending on the vehicle, engine variant, O2 sensor layout, emissions setup, installation quality, tuning or calibration, and supporting exhaust components.

Product Overview

This product is an exhaust manifold header set for compatible BMW N51 / N52 naturally aspirated inline-6 applications. It is not a turbo manifold, downpipe, catback system, full exhaust system, or universal header kit. Please verify your exact chassis, engine code, model year, O2 sensor layout, exhaust connection, and emissions requirements before purchase.

Key Details

• Fitment: Listed 2006–2013 BMW N51 / N52 applications
• Compatible Chassis: E82 / E90 / E91 / E92 / E93 as listed
• Compatible Models: 128i / 325i / 328i / 330i as listed
• Product Type: Exhaust Manifold Headers
• Engine Type: Naturally aspirated BMW inline-6 N51 / N52 applications
• Material: T304 stainless steel as listed
• Construction: Mandrel-bent tubing and welded construction as listed
• Sensor Components: O2 sensor extensions included as listed
• Installation: Professional installation strongly recommended
• Use Case: Off-road, racing, or closed-course use where emissions laws apply

Fitment

Please use the table below to quickly confirm the main vehicle applications listed for this BMW header set. Before ordering, verify your exact model year, chassis code, engine code, emissions configuration, O2 sensor layout, and exhaust connection style.

Package Includes

• BMW N51 / N52 exhaust manifold header components as shown
• Gaskets included as shown or listed
• Hardware included as shown or listed
• O2 sensor extension components included as listed

Please review the product photos and listing details before installation. Confirm all included headers, gaskets, hardware, O2 sensor extensions, and connection components against the received package before beginning installation.

Installation Notes

• Professional installation is strongly recommended.
• Test fit all components before final tightening.
• Verify cylinder head flange alignment, gasket seating, O2 sensor placement, wiring reach, and downstream exhaust connection before installation.
• Check clearance around the engine bay, steering components, subframe, heat shields, wiring, sensors, and surrounding exhaust components.
• O2 sensor extensions are included as listed, but sensor routing and wiring clearance should still be verified during installation.
• Some vehicles may require additional adjustment, compatible exhaust components, or supporting calibration depending on the emissions and sensor setup.
• Inspect all exhaust connections for leaks after installation and recheck fasteners after initial heat cycles where appropriate.

Before You Buy

• This product is intended for listed BMW N51 / N52 naturally aspirated applications only.
• This is an exhaust manifold header set, not a turbo manifold, downpipe, full exhaust system, catback system, or universal header kit.
• Please verify your exact model year, chassis code, engine code, O2 sensor layout, exhaust connection, and emissions setup before purchase.
• This product may alter factory exhaust or emissions-related components depending on the vehicle configuration.
• This product is intended for off-road, racing, or closed-course use where emissions laws apply.
• This product is not represented as street legal, emissions-compliant, CARB-compliant, or legal for public road use unless explicitly stated.
• Performance gains, sound changes, exhaust flow changes, fitment, and drivability results are not guaranteed and may vary by setup.