Hi everybody!

I designed this ATX20-HD battery holder and would like to share it with you all, for free! Tested and installed on my 2018 GT350R. The increased starter power on startup is incredible. Fit and finish is great and no modifications to the car are required. More info can be found on the Printables page below:

https://www.printables.com/model/1518525-antigravity-atx20-hd-battery-holder-for-s550-musta

If you don't have a 3d printer and just want the battery holder, I will print and ship them anywhere in the continental US with the required hardware for $49.50

Nice! Do you have also for the ATX30??

I do not, but I could modify my design if you're willing to test it out on your own printer

KevinMar said:

I do not, but I could modify my design if you're willing to test it out on your own printer

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Lets do that!

flyhalf said:

Lets do that!

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Sorry for the late reply, what size screws do you want to use?

M6?

KevinMar said:

Sorry for the late reply, what size screws do you want to use?

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I also would like to be in on the ATX-30 version, if I may

flyhalf said:

M6?

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CobaltFilly said:

I also would like to be in on the ATX-30 version, if I may

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I sincerely apologize for the delay but I have modeled up and uploaded a version for the ATX30-HD with M6 screws. Same Printables link, just a new file added and a brief description edit. I cannot guarantee it works because I don't have an ATX30-HD to test with. The '30' is taller and wider therefore the mount may not be as strong, but I believe it should still work alright.

Please let me know if any edits are required.

KevinMar said:

I sincerely apologize for the delay but I have modeled up and uploaded a version for the ATX30-HD with M6 screws. Same Printables link, just a new file added and a brief description edit. I cannot guarantee it works because I don't have an ATX30-HD to test with. The '30' is taller and wider therefore the mount may not be as strong, but I believe it should still work alright.

Please let me know if any edits are required.

Click to expand...

Just had my coworker print one off. I need to purchase battery next month, but will keep you updated on ATX-30 version. Not sure if I needed a 30, but decided to be safe rather than sorry as this mustang won't get out more than 2-5 times a year and a few ounces shouldn't make or break it.

Great! Just make sure it's printed out of a material that can withstand the heat and loads expected in the battery bay.