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Exhaust› Headers, Manifolds and Components

Active

Performance Exhaust Header

$759.00 $721.05 Save $37.95

SKU: 11-022

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Active Autowerke BMW N51/N52 Performance Exhaust Header is engineered for BMW chassis with the N52 inline 6-cylinder engine. It optimizes exhaust flow and enhances engine power potential. This header is constructed from 100% 304 brushed stainless steel with mandrel-bent tubing for unrestricted flow.
Show original supplier description
The Active Autowerke BMW N51/N52 Performance Exhaust Header is engineered specifically for BMW chassis equipped with the N52 inline 6-cylinder engine, optimizing exhaust flow and enhancing power potential. It features a 100% 304 brushed stainless steel construction with mandrel-bent tubing for smooth, unrestricted flow. Dyno-proven gains of 20+ WHP over the stock manifold are reported, with improvements to the power and torque curves across the RPM range. The header is available for Coupe, Convertible, and Sedan BMW models, and has been test-fitted on an N52 header jig for precise fitment. It includes all necessary gaskets for installation. Guaranteed fitment is specified for BMW E9X 328i models with the N52 engine. The header features robust exhaust flanges with recessed mounting holes to facilitate straightforward installation, allowing enthusiasts to upgrade their BMW N52 engine efficiently. A two-year limited warranty is included.
Vehicle Symptoms
  • Lack of power at high RPM
  • Engine feels restricted on acceleration
  • Poor exhaust tone from under hood
  • Check engine light due to failed catalytic converter
  • Throttle response feels sluggish
Diagnostic Codes
  • P0420 – Cat Sys Efficiency Below Threshold (B1)
  • P0430 – Cat Sys Efficiency Below Threshold (B2)
Relevant Conversations
  • BMW N52 exhaust header upgrade vs stock manifold
  • Active Autowerke N51/N52 header review
  • P0420 fix for E90 328i with N52
  • Best performance header for N52 engine
  • How to install N52 exhaust header at home
  • AA header vs AFE header N52 comparison
  • N52 header dyno gains real world results
  • Will aftermarket header cause check engine light?
  • Exhaust manifold replacement N51 E90 forum
  • Co-purchase: N52 header with tune and intake

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandActive
Part Number11-022
CategoryExhaust

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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