For all you slash fans RC4WD has released a full roll cage - R/C Tech Forums
TRAXXAS SLASH 727 nylon roll cage roll bar sway bar body protection | eBay
PVRDesignSolutions - @pvrecreation - All in the name of fun! #Traxxas Slash 4x4 PE w/OBA option upgrade & custom PVR roll cage. Custom high airflow body. #MIP axles. 3S 50C 5000mah. #RPM