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Old 09-14-2019, 12:55 AM   #1
WRX_JAC
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Smile 2015+ STI, RCE Yellow vs Eibach PRO Kit, your opinions

Hello guys,

I know that the general consensus here is that RCE are better than pretty much any other lowering springs for the STI, but what about the Eibach PRO Kit? After all, Eibach makes the springs for RCE. So here are the technical specs for both:

RCE
Drop: 0.75" F/R
Progressive Spring Rate
Spring Rate Front: 365lbs max
Spring Rate Rear: 360lbs max
AVG Price: $370

Eibach
Drop: 0.80" F/R
Progressive Spring Rate
Spring Rate Front: 366lbs max
Spring Rate Rear: 400lbs max
AVG Price: $250

As you can see, the drop in height is very similar, SR in the front is also pretty much the same, the major difference is in the SR on the rear, Eibachs seem to be considerably stiffer.

I would like to see your opinions if you had tried both let me know how different they are.

And BTW I know, coil-overs are the way to go but there is no way I'm spending $2K for a set... wife would kill me if I do that.... seriously...
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Old 09-14-2019, 01:03 AM   #2
ayau
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Old 09-14-2019, 01:07 AM   #3
WRX_JAC
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Quote:
Originally Posted by ayau View Post
Thanks,

That's a nice setup, but I'm mainly trying to get some feedback on these specific springs as there is not a lot of info on the Eibach's for the STI.
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Old 09-14-2019, 01:27 AM   #4
ayau
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Originally Posted by WRX_JAC View Post
Thanks,

That's a nice setup, but I'm mainly trying to get some feedback on these specific springs as there is not a lot of info on the Eibach's for the STI.
The rear OEM shocks are somewhat bouncy when you put an aftermarket stiffer spring. The Eibachs with stiffer rears will only accentuate that bounciness. I would say the RCEs will ride slightly smoother, but having properly valved shocks like the RCE Bilstein shocks will be even better.
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Old 09-14-2019, 03:18 PM   #5
Boxer112
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I've had the RCEs on my 17 Sti for about 22k and i didn't have one complaint. I ultimately went on to coils for more adjustability.
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Old 09-14-2019, 04:19 PM   #6
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I've had the RCEs on my 17 Sti for about 22k and i didn't have one complaint. I ultimately went on to coils for more adjustability.
That'll be my plan, springs for now, coilovers later, not ready to spend the money atm.
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Old 09-21-2019, 01:14 PM   #7
pdubbs424
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Are you positive on those rates for Eibach? I thought they were progressive springs with a range from 160 - 366 in Front. I would assume the rear has a range as well but could be mistaken.

I had the RCE Yellows on my WRX for a bit and those were not progressive. It makes a difference over the smaller bumps in the road. The car looked soooo much better with them on, but I ultimately went back to stock for the softer suspension.
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