Tech explained

Ground effect on a 1:10 RC drift car: the XP2 aero kit explained

What the splitter, venturi tunnels and rear diffuser of the MMC XP2 aero kit do, a real test of the effect, and how to print them.

Published 23 October 2026

Can a 1:10 drift car generate real ground effect? The XP2 aero kit started mostly as a looks project. Testing showed the effect is there.

MMC XP2 with the ground-effect aero kit

Looks first, then a real effect

The goal was both: an aggressive look and a working aero package. Mainly the look at the start. But as the kit was developed and tested, the aerodynamic effect showed up.

The proof is in this test on Instagram: air is blown under the car, and the suspension compresses because of the ground effect the aero parts generate.

The forces are not huge. It is a proof of concept, not a race wing.

What each part does

The XP2 aero parts

All three parts work the same way: they speed up the air under the car to create low-pressure areas, and that low pressure pulls the car towards the ground.

You can buy them separately or together in the full ground-effect kit.

XP2 aero kit, underside with the side tunnels

When you notice it on track

Slightly, on high-speed entries on fast tracks: when you are accelerating down a straight and flick the car to start the drift. Once the car is sideways, the system is less effective.

Printing the aero parts

  • Flat on the bed for the strongest parts.
  • Vertical for a better surface finish, at the cost of weaker parts.