wing flaps

and they're also completely hidden from view

The M4 used an angular shaped welded hull

2pcs Bearing Holder

Exotek Racing - Carbon Fiber Lower Ride Height Rear Drag Tower, fits Slash Tires Wheels Inserts Soft wing flapsHeavy duty street racing low profile shock tower for the 2wd Slash. Multi hole settings lowers the ride height when using the stock long shocks and also extra mounting holes that allow you to use shorter front shocks on the rear. Wider tower so that you have the option to mount the shocks more straight up and are ideal for drag racing. 4mm thick carbon fiber for an extra stiff tower that attaches to an alloy base for super secure mounting to your gear