Since they've been out for a bit, I'd like to get some feedback from people that have installed the Progress, and those that have gone with Eibach springs. I do mostly highway driving and don't want something that is too super stiff. How are the rides for the two different springs. The only reason i ask is because i hear a lot of differing opinions on just which are better, but not really why. And feedback is appreciated.

 

Progress are stiffer, and eibach's are bouncier...Progress is a bit of a lower drop...take your pick......

 

i agree on that my brother has eibachs on his miata thin bounces all the time on the small bumps however it is only like an inch of the ground could be the difference

 

I have Eibachs and dont have any bounce issues, have about 18,000 miles on the car too.....

 

Do your friends have pro kits or sportlines installed? The sportlines are NOTORIOUSLY bouncy. Neither spring has had a 100% satisfactory rep so far. I've heard complaints of creaking and clacking from both Eibach and Progress owners. (More likely than not due to imperfect installs in all cases.) After a ride on progress springs I wasn't impressed, but I haven't been in a car with Eibachs installed.

 

....i have eibach and they tend to be a lil bouncy...

 

I think i would tend to go with the eibachs only because i dont want to be too low and have to worry about curbs and pot holes like i did in my eclipse. How about wheel and tire sizes, what would fit in there after a drop with Eibachs? I was thinking 17s would be the next thing i get.

 

Both companies are great. I personally have Progress and give them a Nothing against Eibach.

 

According to the tire chart on http://www.miata.net/garage/tirecalc.html
to keep the same circumf, within .1", you should go with 205/45/17. The next closest size is 225/40/17. These sizes will keep your speedo acurate to within about 1/10 of a mile per hour.

 

If anyone has the ES Progress kit on their OZ let me know how it looks...is it a really noticable drop or what.

 

Eibach is 1.5 drop progress is 1.8 soo ... i have eibach on my accord and it rides really nice on the freeway, soon to get the progress on my OZ, so ill let ya know, if you dont want a stiff ride id go with Eibach , prolly $ 185 dollars or so anywhere maybe cheaper

 

LoL an inch off the ground ?? well umm ya my Old tercel was the same way and ohh my , no strut travel equals tires suspension only

 

i have eibach..after a month..imo feel just like stock springs but its lower.....i dunno i probebly got used to it..and probebly forgot the feelin of stock springs.....hope this help!

 

which set of springs would be better for autox?

 

progress all the way for a oz es just have 2 low of a drop for me