Now comes the last few items on the chassis. Insert the nuts on the wing mount, attach the wing by using countersunk screws and button.

Measure the Rx antenna length and cut tube to size. Capture with the grub screw.

I drilled out the splash guard to attach the fuel line, fuel filter and exhaust cooler. Check if the filter is in right direction. If it's an two piece design, make sure it is tightened. I used the dynamite big daddy filter and sullivan fuel line.

The exhaust cooler helps to lower the exhaust gas temp coming into the tank. (The only way to pressurize these model car engines.) It also acts like a reservoir, and keeps the pressure more constant. The idea is you gain some runtime and a more stable tune. If you use one make sure it's a one piece design. You don't want an air leak, thus creating more problems rather than helping.

If you are racing the legal limit includes volume from your fuel line/filter.