I put the KYB GR2/Excels on the '04 wife's GT2 1.5 years 15K miles ago, and truth be told, I never really liked them. They seemed way too soft.

The rear end had become so wobbly lately that I just couldn't stand it anymore, so I bought some Delco FE2 (OEM) struts to put on the rear. Doing the swap today, the reason for the wobbliness became obvious. The one KYB GR2 on the rear was completely shot, and mean completely. After getting both of the rears off the car and disassembling the strut/spring/mount assemblies, I did a crude test on the them by pushing their shafts down all the way. One of them doesn't rebound......at all. Even the original struts I took off after ~7 years and 80K miles had a little life in them, but this KYB was dead. Pretty disappointing, to say the least.

I left the front KYBs on, as the front seems OK, but the rear end with it's new FE2s is much, much better.

Are you lowered at all? GR2's usually last longer than that if you're not lowered.

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1999 GT|SLP CAI|Borla Catback| Shift kit|18" Koblenz|GMPP Lowering|GMPP handling|Blk Headlights|ER Rcokers|HV3|HV TB http://www.fquick.com/The_Guz

my gr2's have almost that many miles lowered.. i call defect.

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2001 white gt coupe with enough crap to make it run mid 13's with 3 bad pistons
2002 40th GTP sedan mostly stock

No, not lowered.....factory springs. Other bits are modded: gmpp sway bar, moog endlinks, umi trailing arms, but that should be inconsequential.

It's definitely a defective part. The one strut was dead, the other wasn't. I'm disappointed, but as I also said, I really didn't like them when they were new away. They seemed way too soft for the rear end, which is odd because no one else with them seemed to feel the same way. Perhaps they were bad from the start, but they definitely got worse over time.

thought they were adjustable for stiffness

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2007 Pontiac Grand Prix
CAI, HV3, ER Rockers, PLOG, Overkill Tune
http://www.cardomain.com/ride/2990036

The AGX's are but not the GR2's.

Doesn't KYB offer a replacement policy?

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1999 GT|SLP CAI|Borla Catback| Shift kit|18" Koblenz|GMPP Lowering|GMPP handling|Blk Headlights|ER Rcokers|HV3|HV TB http://www.fquick.com/The_Guz

Could get them replaced, then sell the replacements to recover some funds

sent from my driod x, via my fingers through tapatalk

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2001 white gt coupe with enough crap to make it run mid 13's with 3 bad pistons
2002 40th GTP sedan mostly stock

or get replacements and lower so its stiffer

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Dthreap wrote:

Yeah make sure your O2 isn't behind lazy, you want nice up and down.

Planeboy18 wrote:

^^Pro tip for more than just O2 sensor signals

I probably have none of the receipts, and the cost of shipping is probably a significant portion of the total cost anyway. I'm not so worried about the cost of the parts....it's the labor hassle that was the bigger issue. Luckily, the weather was unusually warm for Ohio standards this weekend that I could do it and not freeze my a## off.