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Rapid Designs A90 Supra Differential Brace

razorlab

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If it is the stock exhaust, dude just made a very simple job 100x harder for literally no reason.

Screenshot 2025-06-04 at 9.57.23 AM.webp

Screenshot 2025-06-04 at 9.57.16 AM.webp
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Black

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Wait, im sorry, what exhaust do you have that requires you to remove it in order to install my diff brace?

At the end of the day it doesn't really matter what order you install the bolts, just make sure you tighten each one progressively so as not to side load one bolt. Have you reviewed the install guide?

Downloads | Product Installation Guides — Rapid Designs https://share.google/2n8xWYwAmrlGZxaPp
OEM exhust with the sturt barce in Z4 combined, i'm sorry i just sit with my self thinking if the barce will go throw them to the diff, and aftrer what you said actually i don't need to remove the exhust. sorry for making you freakout 😅😂
it is only the strut bars in the way.

Yes i saw the install guide, but wanted to check from you if i need to follow the installation bolts order or no.
 

tracer bullet

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I'm hoping to sneak it in there without removing the bracing. I guess we'll see.
 

minn19

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Just to verify, to did you go w/ the 3-bolt? From what I can tell it's a sure fit. 4-bolt was iffy.
I haven’t had a chance to look under there yet as I’ve only had the car since Friday. From the pics I’ve seen, I think it is a different brace than what the Z4 has.

If I’m wrong, looks like I could sell it quick and buy the 3 bolt.
 

minn19

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It is not different. It is exactly the same on both the Supra and Z4, from the parts bin.

Supra FE:

143990-6fe72549c90d98b540cf974bed0e26ea.jpg
144095-45440b88c424ee0e3678b0c7b238baf5.jpg


Z4:

DSC3240AAAA.webp

Screenshot 2026-02-24 at 8.24.55 PM.webp
Well shit, guess I’ll be the test dummy to see if I can shoehorn that in there.
 

minn19

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OK, where? I just looked back at all the pictures and didn't see one on a Z4 nor a Supra w/ the z4 brace.
I was thinking the same thing and looked over the thread a few times.

It’ll make more sense to me anyway when I get under there and see how everything is laid out/space etc etc.
 

Z4m40i

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I had to remove the lower bracing when installing the BMS. You’ll spend more pretending you can working around rather than taking the extra 10 minutes just removing it.

lower pass side fastener is close but clears the nut in the body bracing.
IMG_4553.webp
 

tracer bullet

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Wait, it was you
We were thinking you were saying someone had already installed it

I had to remove the lower bracing when installing the BMS.
Yeah, I'm prepared for that, just hoping to avoid it. I'm stubborn that way but ultimately if you had to remove it I'm sure I will as well.
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