aFe Twisted Steel Racing Headers - E46 M3

Zero-restriction headers improve power and reliability on track

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Price:
$1,489.59

aFe E46 M3 racing headers have been dyno'd at 12hp and 16ft-lbs gains! aFe headers are near equal-length, constructed with mandrel-bent 304 stainless steel tubing, TIG welding, and CNC-machined CNC-machined thick flanges for long life, easier installation, and durability. This cat-delete race-version features standard-sized O2 ports for factory or wideband O2 sensors.

The factory catalytic converter is very restrictive which robs a lot of horsepower and torque but works great for cleaning the exhaust gases. However, a track/racing car no longer needs the catalytic converter so removing it makes sense. Removing the cat also saves weight and eliminates the possibility of the catalytic honeycomb material breaking down and causing a total blockage.

Notice of Fault Codes/Check Engine Light - Using any Racing downpipe could result in a check engine light and fault codes, even with sport cats. Although we have heard of cases where no check engine light appeared, these Racing downpipes are not designed to meet emissions testing and regulations. Race software that is specific to your mods is strongly advised to better adapt your car to a racing environment, keep the fault codes from appearing, optimize power gains, and improve general drivability. Our Epic Motorsports Race software is strongly encouraged to meet all of your tuning goals.

Notice of Emissions Non-Compliance. This product is intended only for racing vehicles that may never be used, or registered or licensed for use, upon a public highway. Removing, disabling, or altering emissions equipment on a pollution-controlled road vehicle is illegal. Installing devices or software that trick, disable, or modify emissions controls and monitors on a pollution-controlled road vehicle is also illegal. This product is sold only for racing, competition, track, hobby, or other off-road use. It's use is prohibited in any motor vehicle that is subject to emissions inspection or control. It is not legal for installation or use in California on any pollution controlled motor vehicle. It is not legal for installation or use on any pollution controlled motor vehicle in any state, province, or jurisdiction governed by, or which has adopted, CARB or EPA regulations. BimmerWorld may confirm a customer's racing license, entry, or track participation and reserves the right to cancel part(s) that are not for legitmate racing or track purposes. Some suppliers have shipping exceptions to certain states or territories, requiring extra delivery time. We will advise you of any delays.

BMW Fitments:

3 Series
E46 (99-05) > M3
Z Series
E36/7 / E36/8 Z3 (96-02) > Z3 M - S54
Z Series
E85 / E86 Z4 (03-08) > Z4 M
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