Exhaust Manifold Headers BMW 2006-2013 BMW N52 N51 | E90 E91 E92 E93 E82 | 128i 325i 328i 330i

SKU: XKV11239
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Fitment & Specs
Fits selected 2006–2013 BMW 1 Series / 3 Series applications equipped with N52 or N51 naturally aspirated inline-6 engines, including E82 128i and E90 / E91 / E92 / E93 325i, 328i and 330i models. Verify model year, chassis, engine code, O2 sensor setup, and exhaust compatibility before purchase.
T304 Stainless Steel · Exhaust Manifold Header Kit
Before You Buy: Off-road/racing use only · Professional install recommended · Tuning may be required
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Description

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.

Vehicle Name Year Engine Notes
BMW 128i / E82 Page-listed 2006–2013 range N51 / N52 naturally aspirated I6 Verify exact year, chassis, engine code, O2 sensor layout, and exhaust connection
BMW 325i / E90 / E91 / E92 / E93 Page-listed 2006–2013 range N51 / N52 naturally aspirated I6 Verify exact chassis, emissions setup, and exhaust connection before purchase
BMW 328i / E90 / E91 / E92 / E93 Page-listed 2006–2013 range N51 / N52 naturally aspirated I6 Verify exact chassis, emissions setup, and O2 sensor configuration
BMW 330i / E90 / E91 / E92 / E93 Page-listed 2006–2013 range N51 / N52 naturally aspirated I6 Verify exact model, chassis, engine code, and exhaust layout
Fitment Note: This table is based on the fitment information currently listed for this product. BMW N51 / N52 fitment can vary by chassis, model year, emissions configuration, O2 sensor layout, and exhaust connection. Please verify your exact vehicle configuration before purchase.

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.
Shipping & Return

SHIPPING & DELIVERY
Fast Processing & Reliable Transit

  • Processing: Orders are processed and shipped from the nearest available warehouse within 1 business day after payment.
  • Delivery: Estimated delivery time is approximately 3–4 business days after shipment.
  • Shipping - Free shipping on all orders within the contiguous 48 U.S. states.

RETURNS & EXCHANGES
30-Day Hassle-Free Policy

  • Return Window: We offer a 30-day return policy from the date of delivery.
  • Item Condition: Returned items should be unused, uninstalled, and in their original packaging when possible.
  • Return Process: To initiate a return or exchange, please contact our customer service team first to receive authorization and instructions.

WARRANTY
2-Year Limited Replacement Warranty

  • Duration: All products are backed by a 2-year limited warranty.
  • Coverage: This warranty covers manufacturing defects and product failures under normal use, and provides a replacement for qualified cases (repairs are not performed).

CUSTOMER SUPPORT
We’re Here to Help – Contact Us First

  • Priority Contact: For any order-related issues—including returns, warranty claims, or general inquiries—please contact us first before taking further action. We are committed to resolving your concern promptly.
  • Feedback Notice: If you are unsatisfied, we kindly ask that you allow us an opportunity to address the issue before leaving neutral or negative feedback.
  • Email Support: You can reach us at support@XKVracing.com.

What Does an Exhaust Header Actually Do?

The exhaust header is the first section of the exhaust system and mounts directly to the engine. Its role is to collect exhaust gases from each cylinder and route them into the rest of the exhaust system.

Compared to many factory manifolds, header designs often focus on smoother internal flow and more uniform exhaust routing before gases move downstream.

What You May Notice After Installation

Smoother exhaust flow as engine speed increases

More consistent engine behavior across the RPM range

Improved exhaust routing when paired with other intake or exhaust components

Changes in exhaust tone, depending on system configuration

When This Type of Upgrade Is Typically Considered

Addressing airflow limitations in the factory exhaust manifold

Planning coordinated intake or exhaust system updates

Replacing aging or restrictive original components

Build a balanced, performance-focused setup

Factory Manifold vs. Performance Header

Factory Exhaust Manifold

Designed to meet packaging, cost, and emissions requirements
Prioritizes durability and compliance across broad use cases

Performance Exhaust Header

Designed with exhaust flow characteristics in mind
Built for higher exhaust temperatures and specific vehicle platforms
Commonly used as part of an exhaust system configuration

FAST SHIPPING

Ships within 1 business day after payment
3–4 business day delivery

Secure and Reliable Checkout

Secure checkout with major payment options

LOCAL WAREHOUSE

Orders ship from U.S. warehouses when available

Easy Returns and Exchanges

30-day returns for eligible unused items

Parts Warranty

Warranty support for qualified manufacturing defects

Important Notice

Products on this site are intended for off-road, racing, or closed-course use where emissions laws apply. They are not represented as street legal, emissions-compliant, or legal for use on public roads unless explicitly stated.

Some products may remove, replace, relocate, disable, or alter emissions-related components, including but not limited to catalytic converters, EGR, DPF, SCR, DOC, O2 sensors, or related factory systems. Compatible tuning, calibration, or supporting modifications may be required to avoid engine codes or drivability issues.

Professional installation is recommended. Buyers are responsible for verifying product compatibility, local regulations, emissions requirements, and any required tuning or supporting modifications before purchase and installation.

Performance gains, sound changes, airflow improvements, temperature changes, fuel economy changes, fitment, and drivability results may vary. No specific performance gains are guaranteed.

Frequently Asked Questions

What do exhaust headers do? +

Exhaust headers help route exhaust gases away from the engine through individual tubes and collector-style routing. Actual results depend on the vehicle, engine condition, exhaust system, installation quality, and supporting components.

What's the difference between headers and factory manifolds? +

Factory manifolds are typically designed around packaging, durability, emissions requirements, and production cost. Headers or manifold-related exhaust upgrades may use different tube routing, flange designs, or connection layouts depending on the application.

Will headers increase horsepower? +

Headers may support improved exhaust flow where the product is compatible, but horsepower and torque changes are not guaranteed. Results vary by engine setup, tuning, exhaust configuration, vehicle condition, installation, and supporting modifications.

Do headers make the vehicle louder? +

Headers and related exhaust parts can change exhaust tone and may increase sound depending on the rest of the exhaust system. Final sound level depends on the engine, mufflers, catalytic converters, pipe routing, and complete exhaust setup.

Do I need tuning after installing headers? +

Tuning requirements depend on the vehicle, engine management system, O2 sensor setup, emissions equipment, and supporting modifications. Some installations may not require tuning, while modified builds may require professional inspection, calibration, or tuning to support proper drivability.

Are header products street legal? +

Header and exhaust products may be intended for off-road or racing use where emissions laws apply. They are not represented as street legal, emissions-compliant, or CARB-compliant for public road use unless a valid exemption is explicitly stated. Always check local regulations before purchase and installation.

Can I use headers with a stock exhaust system? +

Compatibility with a stock exhaust system depends on the vehicle and existing exhaust configuration. Some vehicles may require additional hardware, gaskets, connectors, adjustment, or fabrication to complete installation.

Are headers hard to install? +

Installation difficulty varies by vehicle. Tight engine bays, old hardware, rust, engine swaps, modified exhaust systems, sensor placement, and clearance around surrounding components can increase installation complexity. Professional installation is recommended.

Will headers affect reliability? +

Reliability depends on fitment accuracy, installation quality, vehicle condition, heat management, gasket sealing, fastener condition, sensor placement, and supporting components. Proper inspection and installation are important.