By coring out the bottom of the bulkhead

Hot Racing's stainless steel skid plate for the center belly pan of the Traxxas TRX-4

The AUX wire function is disabled by default but is programmable via Castle Link (sold separately)

FRONT & REAR A-ARMS FOR THE HELION ANIMUS 18SC-18TR RED

Drill four new 3mm holes on the hull

Hot Racing - Scale Look Double Spring Pro Shocks, 90mm Paint & Supplies Aerosol Paint By coring out the bottomIncluded: Two shocks Two pairs of Tender Spring Two pair of Main Spring Double spring with Teflon guides Mounting hardware with 4mm spacerFeatures: CNC machined 6061 T6 billet aluminum construction Double spring with Teflon guides Shock bodies are hard anodized Heavy duty 3. 5mm steel shocks shaft for all types of conduction Threaded spring adjusters Aluminum Ball End and Cap with steel 5. 8 ball Specifications: Extended Mounting length: 90mm Overall