| Efficiency Mod Upgrade Category: Engine Upgrades If you've got a long-range plane, a little of this will go a long way. | ||||||||
Combat
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Trading
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Performance
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Upgradability
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| Price: 100,000ฤข Availability: Sharif, Gonk, Alpha 7 |
An oddly poor upgrade when compared to Boring Out and High Efficiency Mod. Can still be effectively used if you wish you use your engine slots purely for range upgrades.
| Upgrades | |
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| Combat | Festival Candle ยท Increased Ammo ยท Mad Props ยท Mega Ammo ยท Shiny Red Light ยท Sleigh Bell ยท Super Ammo |
| Engine | 4 Barrel Carburetor ยท 6 Barrel Carburetor ยท Boring Out ยท Coolant System ยท Efficiency Mod ยท High Efficiency Mod ยท High-Flow Air Filter ยท Internal Air Diversion Plates ยท Internal Fuel Can ยท Internal Fuel Tank ยท Larger Props ยท Port and Polish ยท R Sticker ยท Super Charger ยท Turbo Charger |
| Hull | Additional Cargo Hold ยท Gutted Cargo Hold ยท Gutted Craft ยท Heavy Armor Plating ยท Internal Fuel Expansion ยท Large Internal Fuel Expansion ยท Light Armor Plating ยท Lightweight Shell ยท Med Armor Plating ยท Steel Reinforced Hull ยท Streamlined Hull ยท Wood Reinforced Hull |
| Wing | Drop Tanks ยท High-Lift Wings ยท High-Performance Wings ยท Improved Wings ยท Large External Cargo Hold ยท Large External Fuel Tank ยท Med External Cargo Hold ยท Med External Fuel Tank ยท Small External Cargo Hold |