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ARH High Performance Exhaust System - Headers, X-Pipe, and Resonated Center Section

The ultimate performance exhaust system that includes premium built, high flow 1-5/8" to 3" headers, catalytic converters, x-pipe, resonators, and connects directly to your cat-back/axle-back exhaust!
Mfg Part #
M3-07158300LSWC
ECS Part #
ES#3426899
Brand
American Racing Headers
3832.50
Availability: Direct Ship, Ship ETA Feb 2, 2021
Qty
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Product Details

Looking to increase your total horsepower, torque, and significantly beef up your sound? American Racing Headers is a group dedicated to providing the best all around headers and exhaust money can buy! 100% Made in the USA of high quality 304 stainless steel and using 3/8" thick laser cut flanges for a warp free seal, you can trust that your exhaust components will be built to the highest specifications and will more than likely outlast the rest of your car.

To ensure high power output and the best sound possible, the 304 stainless steel tubing is routed in a specific way to optimize flow through the headers. Using primary tubes that measure in at 1-5/8" diameter each, these are built to specific lengths so that exhaust gases are directed in way that makes them flow highly efficiently and prevents any sort of restriction that would otherwise limit your engine's total output. The gas exits the engine's head then flows down the system, in time, to the 4-to-1 Merge Collectors. These Merge Collectors direct the gases by taking advantage of the natural firing exhaust pulses to create an effect that scavenges the exhaust from the primaries and keeps the exhaust gases moving at their optimum speed. This means more flow and more power at every point of the throttle band all the way up past redline.

For a slightly higher flowing header system that also includes similar components, check out ES3426901 which features 1 3/4" exhaust primary tubes.

The header system attaches to an x-pipe with incorporated 200-cell metallic substrate catalytic converters for extreme durability and to prevent check engine lights in the long run. These are performance catalytic converters that prevent any restriction in your system while still functioning as needed.

Next in line are a pair of resonators to allow the exhaust gases to momentarily collect and expand, helping keep the exhaust flow as smooth as possible and remove some excess noise. If you would like a system without resonators to help add a little more aggression to your exhaust, check out ES3426910 with a de-resonated center section!

From here this exhaust connects directly to your cat-back/axle-back exhaust system! This exhaust system will work with the stock cat-back/axle-back exhaust system, but for a more aggressive sound and unrestricted flow, we recommend checking out our wide selection of high-flow exhaust systems from Corsa, GruppeM, Milltek, and others!

These exhaust system components include all brackets/hardware needed for assembly and mount to stock mounting points using the typical rubber exhaust hangers.

Product Features and Specifications:

  • 100% Made in the USA - Never Outsourced
  • Made entirely of 304 stainless steel 
  • 3/8" thick laser-cut flanges for a warp-free seal
  • 1-5/8" exhaust header primaries for high flow
  • Hand-ported TIG welded inlets
  • Optimized primary tube routing for superior fit and performance
  • Merge collectors complete with welded scavenger spikes
  • Catted systems feature 200 cell metallic substrate catalytic converters for extreme durability
  • High flow catted x-pipe for flow balance and smoothness.
  • Dual resonators for noise reduction

This Part Fits the Following Vehicles

Make Model Submodel Engine
BMW E90 M3 S65 4.0L
BMW E92 M3 S65 4.0L
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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