These upgrades would unlock aero tuning without having to install the forza aero on your car
First starting whit no spoiler and splitter upgrades as the name mentions it this upgrade wont add any spoiler or splitter to your car
(cars whit stock spoilers or splitters when this upgrade is installed it will remove the stock spoilers and splitters)
in order for it to be balanced it will add the same weight as the forza aero or splitter when both upgrades are installed
Aero upgrades will have the same amount of downforce as the forza wing and splitter
Forza Aero Upgrades Stock Spoiler And Stock Splitter
These upgrades will unlock the downforce tuning for the stock spoiler and splitter on your car
They will have the same amount of downforce as the forza wing and splitter
The spoiler wont add weight but the splitter will
Cars whit stock adjustable aero only on the rear example: Clk GTR
The stock rear wing of the clk gtr has adjustable aero but it doenst have the same amount as the rear forza wing
An option could be buff the stock rear aero or just adding the stock aero upgrade whit the same amount of downforce of the forza wing
As i mentioned previously both upgrades will have the same amount of downforce of the forza wing and splitter
Last but not least cars whit not enough rear aero (or front aero) like the buggati eb110 pagani zonda cinque or the lotus elise gt1 should get a buff on aero.
These upgrades would be a great choice for purist racers and for cars whitout aero options like the ferrari f40.
I personally think it would be a great addition to forza horizon 5 at the end we want fun drivable good looking cars.
(Optional all aftermarket splitters and spoilers can also unlock aero adjustments)