Do I have original Eibach springs on my 06 NC?

Hi, I have bought a 2.0L nc with 80k on clock. I notice it has blue suspension coils marked KBA 90901 both front and rear.
Can you tell me if these are original and why they have same number on fronts and backs. The shocks are marked Boge.
Than you.

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If the springs are blue the are not factory fit (original).

Eibach spring generally have ‘Eibach’ printed on them or at least all ive used in past have .

My current Mk3 came with a spare set of blue springs; the previous owner told me they were from Wheels in Motion (WiM), a company who previously specialised in MX-5 suspension set-up… I think they’re still in business but under another proprietor?

May be worth a call if you can find them via internet searches?

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Last post shows the springs

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I think the Mazdaspeed springs sometimes fitted as a dealer option on early NC models were blue. Any chance you have these? Can anybody provide more details on these springs?

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I have Mazdaspeed springs on mine. The Blue springs dealers fitted were Eibach. There are physical differences (apart from colour)
Eibach
eibach
Mazdaspeed

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