Automotive Aero Guides

Practical guides to automotive aerodynamic parts, fitment, testing and sourcing.

Front lip, front splitter, side skirts, rear diffuser and spoiler positions on a performance car

Front Lip vs Splitter vs Side Skirts vs Rear Diffuser: Complete Guide

Noah_admin / 09/27/2026

Front lip vs splitter explained, plus side skirts, rear diffusers and spoilers. Learn what each aero part does, what is cosmetic and how to choose safely.