Thread: KYB Excel-G vs GR-2 - interesting discussion with KYB tech.

who cares if they are the same. they will work fine, especially with some not even lowering the car SSCs...

Originally Posted by Bio248

who cares if they are the same. they will work fine, especially with some not even lowering the car SSCs...

I wouldn't go stating "they will work fine" as fact considering how many people with GR-2 + Vogtland or SSC spring combos would beg to differ with you. There are plenty of complaints of those struts wearing out around 10k miles with lowered springs, even with ones as mild as Vogtlands/SSCs.

Originally Posted by 4THGENCAMAROFAN

Ok so if i'm understanding this correctly the GR2's and the Excel's are identical except for the color. We just need to use the ones of a Monte due to them being a slightly different component to accomodate a lower car. Is this correct?

More specifically, MCs and Impalas with the FE4 suspension package, which I believe started in '04. As to whether they'll accommodate a drop better or not, that's what we're trying to figure out now. Still need more details on exactly what the FE4 package entails. I've been digging around the net for info, but there's not much out there, even in the MC community. I did, however, find this on a thread...

I e-mailed KYB and got this response:

Are the 339015 and 339148 GR-2 struts structurally the same as the 334227 and 334228 struts? Meaning, is everything on the strut itself the same between the two models?

No they are different in length, mounting and mouniting rates.

If I was to get coil springs to drop my car around 1.5” can I use the GR-2s without voiding the warranty or do I have to use the AGX struts?

If you modify your suspension with any springs non-oe design... this will void the warranty whether you use AGX or GR-2.

FE3 vs. FE4 Suspension - Page 2 - Monte Carlo Forum - Monte Carlo Enthusiast Forums


Apparently, the location of the perch-mount and such is different, too if you read through the rest of that thread. So this raises another question about fitment, though I can't see it being so different that they won't fit. I know it was mentioned that the FE4 struts are needed to clear the bigger wheels.