This is a set of DIY backfire capable headers for the Axial Racing SMT10 chassis. They can also be assembled as regular headers and used without the backfire feature. Painting and assembly required.
In order to get the backfire effect you will also need to order a light controller and dual 3mm LEDs from My Trick RC. Follow the link below to order the SQ-1 light controller. You will need to select the controller and a set of the dual 3mm LEDs. The dual 3mm LEDs come in orange, red, or white. There are other colors availible in single 3mm LED that can be used by buying the LED 2-way expander (only one slot on the controller works for backfire). There are plenty of options for cool lighting. You could also add a single red or amber LED from the controller to make a scale RII light as well.
https://www.mytrickrc.com/shop/squirrel-lighting-system/
Assembly instructions can be found here:
https://scalebuildersguild.com/forum/showthread.php?30152-SMT10-DIY-Backfire-Header-Set-Assembly-Instructions