I went the Titan Atlas route for my MP, kits also available for the P4: Titan Atlas antenna mod + car kit
Also, for a freebie upgrade, there are various ways to force FCC mode 
Pinging @My-Mavic-My-Rules as he just takes this to a whole other level 
Also, if you’re tempted @rangioran, don’t forget we have exclusive member discount codes with both Titan Drones and MaxxUAV - check out the Members Only section for more details!