Amazing $350 A90 Subwoofer Upgrade and it’s Removable

[TYMBOM]

Could you do a replacement in the factory box with maybe build something to enclose the top?

Kind of. Remove the factory crap one and build a proper one.

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[a90fresh]

Kind of. Remove the factory crap one and build a proper one.

looks clean ?, how did you level the area directly behind the seats?

 

[alfi.mke]

Gonna copy this setup. For only $350ish?? Seems to be the route to go. How does the 12 inch work with the stock 2 subwoofers?

 

[Turbro]

Kind of. Remove the factory crap one and build a proper one.

Holy hell this is perfect. Is there a thread on this setup?

 

[SupraTR]

Holy hell this is perfect. Is there a thread on this setup?

I agree I'd love to see build pictures this is basically a perfect OEM+ look to me with I'm guessing relatively minimal added weight.

 

[TYMBOM]

@Turbro @SupraTR

 

[Turbro]

Thank you for that! That is a super cool build, and love the box. Whoever made the box should sell them to order. That is slick looking and fits in there so well.

Nice project! Thanks for sharing

 

[Jayv64]

@Turbro @SupraTR

With the FIX-86, does the radio volume work normally?

 

[TYMBOM]

With the FIX-86, does the radio volume work normally?

Yes

 

[vegasZ06]

I stopped counting. It has a utopia 3 way up front. W all 3 of the speakers in new custom locations. Well over 25k

Damn ! 25k is almost half the cost of the car.. I mean 2500$ sounds high 25k ..ouch

 

[SupraSmashedBro]

Kind of. Remove the factory crap one and build a proper one.

Is that the factory rear brace?

EDIT: Nevermind, I found it https://speedindustry.com/cusco-power-brace-trunk-harness-bar-a90-mkv-supra-gr-2020-1c2-492-tp

 

[shaloot]

Is it possible to remove the factory sub box, the upper portion, without cutting or removing anything permanent? Just thinking if it’s reasonable to build a custom box like this but still be able to return exactly to stock if desired.
Really nice builds. I’m leaning towards just adding a removable sub and amp like the OP documented, in case for longer trips I need the space. But, perfect world is to just use the factory location and built it up higher.

 

[suprastew]

Is it possible to remove the factory sub box, the upper portion, without cutting or removing anything permanent? Just thinking if it’s reasonable to build a custom box like this but still be able to return exactly to stock if desired.
Really nice builds. I’m leaning towards just adding a removable sub and amp like the OP documented, in case for longer trips I need the space. But, perfect world is to just use the factory location and built it up higher.

Yes, but I’ve read it’s pretty expensive.

 

[TYMBOM]

I agree I'd love to see build pictures this is basically a perfect OEM+ look to me with I'm guessing relatively minimal added weight.

Yup, still runs 9’s with added weight and good tunes

 

[Teleguy11]

Is it possible to remove the factory sub box, the upper portion, without cutting or removing anything permanent? Just thinking if it’s reasonable to build a custom box like this but still be able to return exactly to stock if desired.
Really nice builds. I’m leaning towards just adding a removable sub and amp like the OP documented, in case for longer trips I need the space. But, perfect world is to just use the factory location and built it up higher.

The subs "enclosure" is welded to the body so cutting would be required to remove the structure.
Cheers

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