This is correct. The front shocks and springs (coilover assemblies) are different, and provide a 10mm drop from the regular suspension. The rear "sport" coilovers are exactly the same as the regular (non-sport) setup.

Javier

 

Anyone have problems in the service bays with getting the car onto the lift? I use to have this problem with my old car, car was so low I could never jack the car up or get the car onto a lift without riding onto a couple 2x4s... The car was such a PITA I sold it 6 months later.

 

FWIW, the shocks are all made by Tokico. There is a sticker on each one indicating position and showing Tokico as the manufacturer.

 

I haven't seen a lot of comments about ride quality after going to a coil-over or Pro Kit. My car ('06 IS250 RWD) rides soooooo nice I don't want to ruin that. My other car (highly modded '02 Z06) doesn't ride bad for what it is, but it's certainly no Lexus. Given the awesome stock ride I'm really happy with the handling of my IS. So really I only want to lower the car for the look (man, my racing buddies would give me hell for that statement).

I'm leaning towards just doing the Pro Kit. The 1" drop seems to look pretty nice, especially if I go up to 19s later. I do all the wrench work on my 'vette (I've had it more or less apart and back together more times than I care to count) so I have no fear I can knock the job out in a few hours. When (not if) the shocks do 'blow' I'll just slap the stock springs on and get 'em warrantied (I have a buddy who's a Lexo tech anyway, so I might not even have to bother).

BUT if the Pro Kit ride is inferior to some of the coil-overs out there I might think twice about going coil-over.

So how much worse is the ride of a Pro Kit vs. stock? What about coil-overs vs. Pro Kit vs. stock?

Thanks for any advice.

-TJ

 

I put my new Tein S-Tech Springs on last night, or I should say, I had them put on, but when I picked up my car, the AFS light was blinking....Does anyone know why this happened or has it happened to anyone else?

I kind of need an argument for either my dealer or the installer....Any help would be greatly appreciated. Thanks ahead of time

 

Well I have had the experience of both the "EIBACH-Pro-Kit" and I am know running the "TIEN-CS" coil-over setup.

From this experience, I can say (and not trying to hate on eibach) honestly, that the ride with the TIEN-CS was just as good as stock, and not only that, I was also able to make adjustments on the fly, whenever I wanted--plus the horrid wheel gap is gone.

Keep in mind though, after you lower the the ride height (from stock TIEN-CS height), the ride will get a tad bit bumpy/bouncy. But overall it feels good and rides low

So IMO, the TIEN is well worth the $$$....

 

Click here. This is a well known and well documented issue with a solution. Probably needs to be added to the FAQ.

 

No regrets. I lowered mine with Eibach. I have the Sport Package and it still dropped the car about 1" front and .8" rear. With a full tank of gas and some bags for a small trip the rear wheels tuck =) Looks really good.
I did the install myself and they are Tokico Shocks. I wouldn't expect any problems with the stock shocks. I already had to watch out for curbs when parking so nothing has changed.
If you're going to drop the car over 2" get coil overs.
I see a lot of people get coil overs and never use them. They end up setting the height and spring rate and leave it. They will change it the first few months but after that they never change it. I really depends on you.

 

Of course, coil-overs are a superior setup since you get a shock that’s custom-matched to the spring. Having said that, the ride quality of the Eibach Pro-Kit is excellent. I’ve given my friends rides in my car and they were absolutely amazed at the ride quality. I was all prepared to have a jittery ride once I got my Eibachs on, but I honestly can’t tell a difference in ride quality between my stock (non-sport) setup and the Eibachs - I couldn’t be happier with them.

Javier

 

If your doing coil-overs correctly, aren't you supposed to four, individual, wheel scales to adjust them properly?

 

If you ride with 2-3 people a lot will it cause the springs to sag/wear prematurely?
If I have the sports model and lower it, what from the sports package will I still have over someone with the premium/lux?

 

Not the springs, obviously .

And for the riding with a bunch of people thing, any springs or shocks suffer more with more weight.

 

Thanks for the feedback! Where in CA are you? If you're in the Bay Area I'd love to take a look at your car and maybe get a ride. Thanks.

From a handling/racing standpoint, yes you should. The process is called corner-weighting and I have it done on my Corvette to provide the most balanced handling possible. However, I doubt any of us are racing our IS's to the level that corner-weighting would be worth it. I think most of us would be just fine adjusting to ride-height for the look we want (level with an average load in the vehicle) as opposed to adjusting to corner-weight.

-TJ

 

I'm in Pasadena, and won't be in Nor-Cal until EOS later this year...

Javier

 

Man they're not stupid like you think. They'll check all the ball jonts, every thing that they could find and tell you that your car was lower, no warranty....gl trying to cheat them....