American Authority

To help channel the high speed air flow coming from underneath the car, diffusers redirects the high speed air flow to transition smoothly into the low pressure vacuum in the rear. This encourages a smoother flowing air flow underneath the car and allows better performance from other aerodynamic components such as aerodynamic wings.

Manufactured using pre-preg carbon fiber and cured in an autoclave under high temperature and pressure, this component offers an exceptional strength-to-weight ratio. The result is a lightweight, rigid, and durable aerodynamic upgrade designed to perform on both the street and the track.

American Brother Designs, LLC is housed in a 30,000 square foot CNC machining, manufacturing and finishing facility in Carson City, Nevada. We take pride as a company in designing and offering the auto accessory industry’s largest variety of billet finishes.

An innovative decal graphic manufacturer unlike any other

- precision cut decal graphics using computer-aided design (CAD) software
- graphics are designed and manufactured in-house, so we can ensure the highest quality
- easy installation and a perfect fit

Superior quality Toray pre-preg weaving and autoclave cured carbon fiber with OE-level fitment. CFD modeling used to optimize airflow, cooling, and balance downforce and drag, ensuring bolt-on performance on both road and track.