Swift or Eibach Pro kit?

[eliwwjd]

I just recently changed my shocks and new tires. Budget didn't stretch enough to get yellows or bilnsteins so I got all 4 koni str.t from edgeautopsorts which gave me a good deal. I installed the struts with strut mounts, bum stops and spring insulator on March and barely this Friday 8th I installed a new set of nitto invo 225/40. I wanted to install a set of springs to improve performance and looks but not lowered the car to much(slam). Here in Puerto Rico roads are not to good like in the states, we get quite much pot holes and un-even road surfaces on some of the roads. When it rains it gets nasty, water gets puddle so I have to take these things into considerations.
I was considering going with eibach pro kit but than started reading about swift so I went ahead and did my homework, went on there website to find out and noticed that this is an outstanding japan company with a reputation on other platforms.Then I came across some reviews of some members experiencing zag with the eibach. Kept on reading and came across this link which really helped me due to pictures being posted.
SWIFT SPRINGS

This post was lastly updated on 2015 so I wanted to see how has been the experience until this moment with the swift spring. If anybody by chance has them mated with koni strt.t let me know how has been your experience.
I'm kind of sold on the swifts but wanted you guys opinion when compared to eibach & H&R. Thanks for the help

[KiwiFlavor]

Im running Swift springs on my stock struts. I think they're awesome. Good rides and comfortable for a daily drive. Mind you that roads in NH are pretty bad.

The springs are a little bit bouncy. Could be just because im running stock struts.

I do not have experience with Eibach and H&R's. I do know that H&R has the most drop out of them.

ImageUploadedByTapatalk1460591083.154668.jpg

[eliwwjd]

Thanks for the reply. Man your car looks awesome!!!!
Now with the info you have shared with me, I'm here wondering if with the koni str.t struts and shocks, the car would be bouncy like yours because the koni strt.t are suppose to be am oem replacement although some people think they are a bit stiffer.

[KiwiFlavor]

Ok i should have worded it better lol. I was in class so had to type real quick.

Coming from coilovers, yes, these springs are bouncier. They are stiffer than OEM. But, not as stiff as my coilovers were (obviously)

I should say they are stiff enough to improve handling but also very comfortable for daily drive.

And thanks for the compliment good sir.

[texasboy21]

I wouldnt run aftermarket springs with OEM or ST.R shocks/struts. The ride will be very bouncy and they will wear the shocks/struts quicker.

If you are looking purely for aesthetics go for it, but it you truly want to improve the overall handling of the car do it right.

[KiwiFlavor]

Originally Posted by texasboy21 I wouldnt run aftermarket springs with OEM or ST.R shocks/struts. The ride will be very bouncy and they will wear the shocks/struts quicker. If you are looking purely for aesthetics go for it, but it you truly want to improve the overall handling of the car do it right.

Totally agree. Koni Yellow or bilsteins would be ideal for max performance.

Though, he will be okay with swift on stock/STR.T's because swift springs were made based on OEM shocks limit. Mine's been holding up for about 7000+ daily driven miles now. Granted i dont track my car or anything.

[eliwwjd]

Originally Posted by texasboy21 I wouldnt run aftermarket springs with OEM or ST.R shocks/struts. The ride will be very bouncy and they will wear the shocks/struts quicker. If you are looking purely for aesthetics go for it, but it you truly want to improve the overall handling of the car do it right.

Thanks for your advice! Although aren't the swift springs suppose to work fine with oem valving, according to swift? From what I read, they built the spring to specifically match maximum capability of oem shock valving.

Originally Posted by KiwiFlavor Totally agree. Koni Yellow or bilsteins would be ideal for max performance. Though, he will be okay with swift on stock/STR.T's because swift springs were made based on OEM shocks limit. Mine's been holding up for about 7000+ daily driven miles now. Granted i dont track my car or anything.

Any wear out shock problems in your case? I don't track my car but do some street pull racing once and then.

[KiwiFlavor]

Originally Posted by eliwwjd Any wear out shock problems in your case? I don't track my car but do some street pull racing once and then.

So far i haven't had any problems (knock on wood). I actually was able to look at them physically about 3 weeks ago and everything was still good.

[anavrinIV]

This isn't a question....Swifts are the only way to go.

I'm running them also with stock shocks, have had them for ~6 months and 12k miles no problem. I don't find the ride to be bouncy, in fact I've been impressed with the way the stock shocks have handled the increased spring force. I know they won't last forever but I'm happy until they go.

[eliwwjd]

Originally Posted by anavrinIV This isn't a question....Swifts are the only way to go. I'm running them also with stock shocks, have had them for ~6 months and 12k miles no problem. I don't find the ride to be bouncy, in fact I've been impressed with the way the stock shocks have handled the increased spring force. I know they won't last forever but I'm happy until they go.

Thanks guy!


Ok I just got off the line with a koni engineer and he clarified this, he told me that you can use the swift spring with str.t shocks and struts. They are made to be used with any aftermarket spring. He even told me that they sometimes sell struts and shock packages for other platforms that have swift springs. I once again specifically asked him over about quick wear out problems and he told me, that I shouldn't have any problems of them wearing out quicker due to the installment of swift springs.
On the webpage it mentioned
"One of the great advantages of KONI adjustable shocks is that there is no specific spring for matching optimum performance. Instead you can adjust your KONIs to match your springs. Most performance springs have a higher spring rate than the vehicle's original springs. Since the shock controls the motion of the spring, increased spring rates require more rebound damping for control and that is one of the reasons why KONIs are rebound adjustable (and some are double adjustable). Using higher rate springs with OE or soft shocks will very quickly overcome and wear out the shocks. The KONI adjustment range is typically about 100% (twice as firm at the full firm settings at the full soft setting) to allow for proper damping of OE springs and high rate performance springs."

In bold, I guess this is debatable when considering you guys experience so far with the oem shocks. If I take into consideration this bold line ,this makes me think that the strt.t are in fact stiffer than oem shocks making them usable with aftermarket springs. Anyhow the engineer told me they were meant to be used with aftermarket springs.

[KiwiFlavor]

I'm going to say this..



















Swift springs = win!

[texasboy21]

Sounds like the Koni sells rep was selling on you on the product. Do you think he would have said anything negative?

[anavrinIV]

Originally Posted by texasboy21 Sounds like the Koni sells rep was selling on you on the product. Do you think he would have said anything negative?

Where is all the information that says not to use str.ts with lowering springs?

Because if he was just being a good salesman he would have said not to use them but to upgrade to yellows.

[Silaramic]

I have Eibach-Pro springs with Koni Str.t (orange) struts and wish I would have spent the extra money and gotten Koni Yellows or Bilsteins. The ride is too bouncy IMO.

[Andy]

I have Swifts on Bilstein B8 and even the Bilsteins feel underdamped at times. I would recommend the Eibach Pro-Kit for you because they are a progressive spring that will work better with the Koni STR.T shocks and struts.

The Swift Spec-R are designed as a "race" spring for people who track their cars. As such, no matter what sales people suggest, I would go with the engineering and not get Swifts unless you have damping rates to match. They are linear and will be much stiffer than the Eibachs at similar deflection measurements. Koni STR.T are damped similarly to the softest Koni yellow settings. I think this would pair well with the Eibach Pro-Kit. The Pro-Kit is also what comes in the new STR.T lowering kit that just came out. They were using H&R before, which is also a progressive spring.

[texasboy21]

Originally Posted by anavrinIV Where is all the information that says not to use str.ts with lowering springs? Because if he was just being a good salesman he would have said not to use them but to upgrade to yellows.

I am under the impression the ST.Rs are OEM replacement.

[Tifosi42]

I put Swift springs on my car last fall with the OEM struts/dampers and it was a decent ride, but at times too bouncy for my taste. About a month ago I had my driver side rear damper leaking oil, it was shot. I replaced my OEMs with Koni Yellows adjusted to mid stiffness and the bounce is gone and the car feels very firm and responsive. I may even make an adjustment to stiffer. The only complaint I have about the koni yellows is that they have to be adjusted off of the car, but otherwise they are great. I would highly recommend the Swift springs for sure, a nice drop and definite improvement in handling. Of note, I needed adjustable camber arms to have a proper alignment on the car as well. Just my $0.02

[eliwwjd]

Originally Posted by Tifosi42 I put Swift springs on my car last fall with the OEM struts/dampers and it was a decent ride, but at times too bouncy for my taste. About a month ago I had my driver side rear damper leaking oil, it was shot. I replaced my OEMs with Koni Yellows adjusted to mid stiffness and the bounce is gone and the car feels very firm and responsive. I may even make an adjustment to stiffer. The only complaint I have about the koni yellows is that they have to be adjusted off of the car, but otherwise they are great. I would highly recommend the Swift springs for sure, a nice drop and definite improvement in handling. Of note, I needed adjustable camber arms to have a proper alignment on the car as well. Just my $0.02

So if it was you, you would go with swift springs?
This is pathetic, I just recently did brand new shocks all around so I can't afford to go and replace them with koni yellows so that being said I have to wait until str.t wear out which is going to be a while. I'm not going to buy eibach so then when getting koni yellows in the future, buy a set of swift springs, money is hard to earn.
How bouncy can it get really??????

[KiwiFlavor]

It's not as bouncy as you think. You'll be fine. But, it's your decision lol. If you were closer id let you ride my car.

Do you have anyone around you with them installed?

Oh also as @Tifosi42; said, i also installed rear camber arms for more adjustability range.

[Tifosi42]

@eliwwjd;I would buy the swift springs again. Swift has a higher spring rate than the rest of the aftermarket springs. They are designed to work with the stock shocks although aftermarket are recommended, so your Koni strs shouldn't be any worse than being on a stock shock, I would think hey would be at least marginally better than stock. I really didn't mind the ride in stock shocks with the swift springs, it's just better now with the Koni yellows.

[eliwwjd]

Thanks guys. I have alot of money to save because i want to do ur catted downpipe and aem meth kit w/failsafe so i could then retune. I wish these goodies didn't cost so much.

[3starmagnum]

I've been running Swift for about two and half years now, on oem shocks/struts. Been through summers and winters on our shitty Canadian highways.. I've just had my first shock (rear passenger) blow on me about 2 weeks ago (granted I hit a pot hole the size of the Grand Canyon - again, shitty "spring time" Canadian roads).. IMO, I'm ok with the ride quality of the Swift springs with oem shocks/struts, but I only daily drive the car.. If this helps any, I'd go with the Swifts and feel you'll be just fine with the oem s/s.

[KiwiFlavor]

@eliwwjd; all these positive reviews are a sign that you should get them lol. Also might want to get new end links just in case. I had to torch mine out.

[eliwwjd]

Originally Posted by KiwiFlavor @eliwwjd; all these positive reviews are a sign that you should get them lol. Also might want to get new end links just in case. I had to torch mine out.

Definitely!!!!

[UnknownReagent]

Originally Posted by Andy I have Swifts on Bilstein B8 and even the Bilsteins feel underdamped at times. I would recommend the Eibach Pro-Kit for you because they are a progressive spring that will work better with the Koni STR.T shocks and struts.

This is my experience as well. At the higher end of highway speeds, the car can feel a bit floaty and underdamped. I can't see using an OEM strut with the Swifts and getting good high speed damping. Surface street handling would probably be decent though.

[Zessen]

I have STR.T with H&Rs and the ride doesn't feel bouncy on the rough roads of LA. My only gripe is the left rear sits a tad bit lower than the rear right

[simplycmplex]

This is alllll awesome info guys. Takin the day off to install me some SWIFT springs tomorrow on stock s/s!!


Excited when THIS!


Turns to THIS!


Will keep u guys updated!


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[eliwwjd]

Originally Posted by simplycmplex This is alllll awesome info guys. Takin the day off to install me some SWIFT springs tomorrow on stock s/s!! Excited when THIS! Turns to THIS! Will keep u guys updated! Sent from my iPhone using Tapatalk

Dam that ride looks good! Let me know if you feel its bouncy and please post pictures of your ride once finished.

[tmillner]

Originally Posted by simplycmplex This is alllll awesome info guys. Takin the day off to install me some SWIFT springs tomorrow on stock s/s!! Excited when THIS! Turns to THIS! Will keep u guys updated! Sent from my iPhone using Tapatalk

What color are those wheels on the white one? Look good

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[simplycmplex]

Originally Posted by tmillner What color are those wheels on the white one? Look good Sent from my SM-N920P using Tapatalk

I think they're the gunmetal grey that came with the RX8 R3...

I bought them with that color too but was a little too light for my tastes so i got them painted darker

[tmillner]

Noooo! That set up looked amazing

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[simplycmplex]

Originally Posted by tmillner Noooo! That set up looked amazing Sent from my SM-N920P using Tapatalk

It's not THAT bad... Will look even better when SWIFT install is done... Will keep you guys updated

[tmillner]

Yeah keep pics posted

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[simplycmplex]

BEFORE



AFTER


Just got done with her.... Down to a 1 finger gap from three ish...

Really tossing around the idea of spacers at this point... Im not quite set on it being a little tucked...

Havent done too much driving on it yet.... More feedback to come...


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[simplycmplex]

Okay... Ride has officially settled.

My first thought is that it is relatively bouncy with stock S/S. If you HAVE to replace them go with the b8's.

My S/S have only 20k miles on them so i ended up cheapening out. It's in no way harsh or unbearable. The ride feel regarding stiffness is pretty much stock IMO. I'm pretty happy with the purchase and will be definitely going to B8's as soon as my stockies bite it.


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[TeamInsane72]

Good feedback in this thread. I've been debating between the Swift, Eibach and H&R springs. I already have the Koni Yellows (not installed) and have been leaning towards the Swift springs.

[The_Boost_Buddha]

Originally Posted by TeamInsane72 Good feedback in this thread. I've been debating between the Swift, Eibach and H&R springs. I already have the Koni Yellows (not installed) and have been leaning towards the Swift springs.

I'm actually running Koni Yellows with swift type R springs. And fucking WOW bro, don't hesitate. The car with my Michelin pilot super sports has never gave me any worry or doubt. And I fucking ABUSE this car around town. Can't speak about track attitude of these but fuck man this FWD handles like it's on rails. PS some reputable sources told me with these shocks and springs shorter sway bar end links are pretty strongly advised because of how short the Yellow body is

[TeamInsane72]

Originally Posted by The_Boost_Buddha I'm actually running Koni Yellows with swift type R springs. And fucking WOW bro, don't hesitate. The car with my Michelin pilot super sports has never gave me any worry or doubt. And I fucking ABUSE this car around town. Can't speak about track attitude of these but fuck man this FWD handles like it's on rails. PS some reputable sources told me with these shocks and springs shorter sway bar end links are pretty strongly advised because of how short the Yellow body is

This is awesome. Thanks. I think I will go with the Swifts and look into the adjustable/shorter endlinks.

[The_Boost_Buddha]

Originally Posted by TeamInsane72 This is awesome. Thanks. I think I will go with the Swifts and look into the adjustable/shorter endlinks.

Yeah I've ran Eibach and H&R and the H&R were my favorite until these Swift Type R, the drop is only 1.25 inches but that's enough to give it a really good aggressive look without scraping on steep driveways or speed bumps. I can tell you the responsiveness is immensely improved over stock, and noticeable reduction in body roll, and reduction in loft/bounce is very noticeable

[TeamInsane72]

Shit... now I"m a little excited.

I was deciding between those 3 exactly, but in the past I've only had Eibach springs which were used with Ground Controls.

I will definitely update this thread once installed.