Z31-to-S13 coilover adapter compatibility list

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This thread will be updated periodically as various models/brands are measured or test fitted.



Coilover adapter fitment/trimming diagram
1. The peak of the gusset is 24mm away from the edge of the top bolt at all camber settings
2. This RED area is the maximum allowable to cut from the adapter, without compromising it
3. The PURPLE dots represent where the bolts are at maximum negative camber
4. The GREEN dots represent where the bolts are at maximum positive camber

The DIRECT-FIT list of coilovers
- HSD
- KTS
- Stance
- Powertrix
- ISIS
- Godspeed
- HKS Hipermax II/III
- Apexi N1 Revolution
- Tein SuperDrift
- Buddyclub D1
- Megan Racing
- FortuneAuto 500/510 gen 4-5 (maybe others)

May fit:
- Tein Basic
- Driftworks CS2

The FITS-WITH-MODIFICATION list of coilovers
- BC racing
- K-sport
- D2
- Raceland
- DME
- Apexi (some)
- Tein (some)
- Cusco (some)
- Buddyclub (some)
- CX Racing (or use Megan brackets)
- EMUSA (or use Megan brackets)

The DIFFICULT-TO-FIT list of coilovers
- Function&Form
- Yonaka
- Parts By Max/Parts Shop Max


The above is based on research I've done, I'm 99.9% sure of it's veracity, but I have no control over products or design changes... will update as often as possible.

Side note: Some coilover manufacturers like Megan Racing offer "extended brackets" that solve their poor fitment, and become direct-fit... but as this adds expense, you'd likely be better off choosing a better unit at the higher price that does fit.

This is the determining measurement that categorizes fitment:

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The reason for fitment issues, and why trimming might be required, is that during adjustment, the coilover body moves closer to the adapter. This potentially means losing some or all of the adjustment range available on the adapter.

The overwhelming majority of coilovers will work perfectly, with just the blade trimmed down to the base at an angle.

[sweetbbyrays Profile]

I would love to own a set of these, when will you making more? Thanks for supporting Z31s!

[mmmbbq Profile]

I'm in too. Been eyeballing these for awhile and just noticed they are no more. Was loving the z31 love while it was there.

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Should be back in stock tomorrow...

[alvinkomal Profile]

Are you located in canada? And is there a write up on how to install*

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[jones_z31 Profile]

When will you have more adapters in stock? And where do you ship from?

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10 sets should be in stock early next week...

[86 z Profile]

Are there any 600 dollar range coilovers that directly fit, if not. What type of modifications do the coilovers need.

Somewhat related but how do the rear coilovers look with the adapters