GT4-K Carbon Undertray Kit (E9x M3)

More info coming soon.

Low profile design.

The design is raised and the underside flattened. It is no longer the lowest point at the front of our M3 V8s.

Pre-preg carbon.

The combination of far stronger material and raised profile drastically reduce risks of catastrophic damages to the undertrays.

3D design.

The rear vertical walls are retained to seal with fender liners and the front bumper to optimize cooling and aerodynamics.

Oil cooler integration.

The cutouts and channeling are replicated from the original design to seal the oil cooler.

Spec your kit

GT4-K Carbon Undertray Kit (E9x M3)

Specifications:

Made in Germany
Complete pre-preg carbon construction cured in autoclave
- 2x2 weave
- Raw carbon finish
- 1.6mm thickness
OE+ design:
- Retains the 3x piece design of the original undertray for ease of servicing and installation.
- Oil cooling vents are retained along with attachment points for the metal support wires, threaded inserts for liner bolts, etc.
- 3D design: the rear vertical walls are retained to seal with fender liners and the front bumper to optimize cooling and aerodynamics.
- Low profile design: The undertrays are no longer the lowest component at the front of the E9x M3, your bumper is!
Weight:
- OEM: 3.9 lbs
- Carbon: 3.9 lbs
Hardware included.
This is a stand-alone component to the GT4-K front lip kit.

Shipping calculated at checkout.

build journal

The best, smartest GT4 lip kit on the market.

Inexpensive Alibaba replicas are commonly available. On its own, that has kept me at bay of introducing a GT4 style lip kit - until now.

The new GT4-K lip kit intends to be a premium GT4 style lip with a keen focus on fitment and durability.

In this Series, I document the development of the GT4-K lip kit, its features, modularity, fitment and overall impressions.

Cheers,
- Matt

Read the series (coming soon)