Buildjournal Front Race Splitter – E46 M3


Increase downforce with our E46 M3 Front Race Splitter. Our hand-cut splitter is made with 0.25″ Alumalite material which is an aluminum composite with a high-density corrugated polypropylene core that weighs only 9 lbs! This will fit E46 M3 as well as E46 non-M with M front bumper. 100% compatible with our Quick-Release Adjustable Front Splitter Brackets and Splitter Brace. Type 1 is a rounded corner design with a 4″ splitter running an ACS lip. Type 2 is a 11″ straight-side design for applications requiring winglets such as the RS Future Winglets.

This product is built to order. Lead time takes 3-5 days.


Add-On Feature

SKU 16549 Categories , Tag

E46 M3 Front Splitter

Sturdy, Light Construction

Our splitter is made with 0.25" Alumalite material which is an aluminum composite with a high-density corrugated polypropylene core that is highly water resistant. The unique core design makes it light, but very rigid which is important for high wind resistance.

Weighs Less Than 10 lbs

The Alumalite material core is made with a corrugated plastic with 2 thin aluminum sheet sandwiching the core. If you're trying to reduce weight, this is a better option than wood, ABS plastic or Alupoly.

E46 M3 Front Splitter
E46 M3 Front Splitter

Splitter Guard (Add-On)

For those that want an extra layer of protection from road debris, our plastic splitter guard is a great add-on. It also improves the aesthetics of the lip.

Splitter Brace (Optional)

It is highly recommended to reinforce the front splitter with a Splitter Brace. This provides maximum frontal support of the splitter over hang without having to use splitter rods.

Splitter Brackets (Optional)

100% compatible with our splitter brackets.

Buildjournal E46 M3 on APEX ARC-8R Forged

❗ Additional reinforcements for the Race Splitter, such as front splitter rods, are recommended to ensure stability during high-speeds. It is also critical to set the angle-of-attack (AOA) of the Race Splitter to eliminate excessive downwards angle at high-speeds. We recommend slightly positive (facing upwards) AOA from neutral 0 degrees.

Vehicle Fitment

BMWE46323CiM52 2.5L
BMWE46323iM52 2.5L
BMWE46325CiM54 2.5L
BMWE46325iM54 2.5L
BMWE46325xiM54 2.5L
BMWE46328CiM52 2.8L
BMWE46328iM52 2.8L
BMWE46330CiM54 3.0L
BMWE46330iM54 3.0L
BMWE46330xiM54 3.0L
BMWE46M3S54 3.2L
Additional information
Weight 9 lbs
Dimensions 66.5 × 0.25 × 33 in

Type 1, Type 2












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Series Chassis Model
Series Chassis Model
3 Series E46 (99-06) 320i
3 Series E46 (99-06) 323Ci
3 Series E46 (99-06) 323i
3 Series E46 (99-06) 325Ci
3 Series E46 (99-06) 325i
3 Series E46 (99-06) 325xi
3 Series E46 (99-06) 328Ci
3 Series E46 (99-06) 328i
3 Series E46 (99-06) 330Ci
3 Series E46 (99-06) 330i
3 Series E46 (99-06) 330xi
3 Series E46 (99-06) M3
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