Any reason to upgrade Turbo beyond max?

I have LVL40 epic and LVL1 legendary Turbos.

It seems that LVL-40 Epic with just 3 epic perks provides enough speed bonus to max out any ship.
Moreso - LVL1 legendary Turbo with 2 epic perks & 1 rare perk applied seems to already provide enough speed bonus to max out any ship.
At the same time LVL-1 legendary Turbo with perks has 943 Gear score and LVL40 Epic & 3 E-perks has 1106 Gear score

I am assuming if I can get maximum speed bonus with lower gear score it makes no sense to use the item with the higher gear score.

I am ok moving the items on and off the current ships, so besides the minor convenience of not doing it when i change ships, it seems like I should just keep the Legendary Turbo with its perks and scrap the LVL-40 Epic Turbo and get a ton of resources etc.

Is there any reason to NOT scrap the LVL-40 epic Turbo and sell the extra Epic perks?

 

Roll the dice.. but my money is on keeping both for the following reasons:

1: HCTDM. Multiple ships require multiple turbos
2: Maybe in the future devs adjust Turbo to require upgrading it beyond Epic 40.
3: Maybe the devs get rid of Turbo, and if so would allow transmuting it into another blue item
4: Lower Gear Score of Legendary is generally a better choice.
5: Upgrading the Epic will allow you to use more ship HP perks in place of the turbo perks. The cost will be GS though.