I thought Swift springs were not progressive, this pic says differently.




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May fit, but may not give the same drop and/or ride quality.

Since they now have the springs for the X Sedan I would bet they have them for the X Coupe.

Send them an email...they are quick to respond.

 

I just got off the phone with Swift concerning the springs for the 08-12 X Sedan

The specs for the drop are:
Front 1.3"
Rear 1.0"

Rate:
Front 450
Rear 410

 

Can you give me their number???
Apparently the number they on their website is not in service....

 

Yea I'm not sure if that's a bad thing but the ride is deffinetly better. Maybe it's progressive to save the shocks? I dunno..

 

As compared to
576 frt
543 rr

For Coupes

 

I called the number on their website....1.909.923.9788

 

I was told and I read that these springs allow you to retain stock shocks. No need to change shocks or get an alignment. They supposedly keep the shocks within specs which is probably why these springs are progressive and is another reason why I went with the Swift Springs.

I measured from ground to fender again today and the drop is now 26 1/2 rear (same) and 27 1/4 front (about 1/8th lower). It's been 9 days

 

This is now questionable in my mind.
I believed that when they advertised, less coils, and not progressive.

I now see they are progressive, and the spring rate is actually higher than Eibach springs.






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I thought ur suppose to get an alignment every time you change height

 

They claim this is not necessary but I do plan on getting it aligned after I get my Vossens installed

 

Well after much searching online I have come to the conclusion that these springs are NOT progressive. Here is what I found.

"These springs are not progressive, they are a linnear spring that simply takes up slack in the shock, due to a shorter spring. The progressive ends should be fully collapsed with the weight of the car. Also the spring rates were made to be within the stock shocks valving. So I'm sure only so much can be done"

I did email Swift asking to clarify this for us. But from the picture above I can see that the spring is probably colapsed at the progressive point.

Source: Swift Spec R - 2008 EVO X Review/Install/Pics - EvoXForums.com - Mitsubishi Lancer Evolution X Forums Post #9

 

So are Eibachs.

Your source is a forum post!!

 

Yes but "I did email Swift asking to clarify this for us." Also, the picture above (on second page) supports the forum post.

 

OK I finally got a response from Swift:
Those are the correct springs. And yes they are linear. The progressive portion of those springs act as a helper spring and they are fully collapsed at static height.
In creating lowering springs the spring would obviously have to be shorter, and then on top of that we have increased the spring rates a significant amount as well. This in turn will make the spring so short that it will play around in the shock, especially going up driveways or speedbumps. To fix this we have this portion of the spring act like a helper spring, just like what you would see on a coilover setup. These springs are a linear spring on the vehicle.

If you have any other questions please let us know, or if you contact us at the number below.

Thank you for purchasing our springs!