I have been looking at just about every spring available for our cars... B&G, H&R, Eibach, Tein, Goldline, etc.
I want to get some feedback on the quality of some of these springs... stance, ride quality, sagging if any.

Incase anybody is wondering, I will be running the KYB AGX struts.

Thanks..

Pro-kit and agx's= win

I still have road magnets, theyre good if you like a slight clunk noise and a raked stance.

I love my sportlines, but those won't make AGX's happy...

i rocked agx and sportlines, I didn't have any problems. But I may have just been lucky.
no complaints with the setup though.

Alot of people run AGX and Sportlines no issues, just don't plan to keep any warranty on the struts. I have had H&Rs and they're a decent riding spring and never sagged for the amount of time that I had them.


2009 Ford Mustang V6

B&G's are stiff no matter what strut you run, so if your into tight cornering but feeling every bump and having to have your struts on a firm setting to get rid of "bounce" they are a good call. Nice even loweing too when i had them. I don't know if the AGX's will properly dampen them even on the firmest settings

I've heard similar feedback as above on goldlines

I currently have tein s.techs and they are a great compromise of ride quality and cornering ability. On full soft they ride better than stock IMO, and with an adjustable strut you can always firm it up if its not up to your liking.

the pro-kit is the most popular spring with the AGX's. The sportline is probably too high of a rate (stiffer than the B&G) and too low for the AGX to last very long, but some get lucky.

Can't offer feedback on H&R

I have Sprints, which are on the higher side of the stiffness spectrum, but the ride quality is decent, and they have not sagged at all after 7 years.

oldskool wrote:B&G's are stiff no matter what strut you run, so if your into tight cornering but feeling every bump and having to have your struts on a firm setting to get rid of "bounce" they are a good call. Nice even loweing too when i had them. I don't know if the AGX's will properly dampen them even on the firmest settings

I can vouch for the stiffness of B&G springs. Alright if the roads are smooth, but if not then the Pro-Kit for relatively the same drop.

megan = bad

Eibach Pro Kit

AGX were specifically design for the Eibach Pro kit not the sport lines. Koni's with sportlines are a much better ride.


2004 Grand Prix GTP (Competition Group)
SOLD-->1999 Z24 5M-#30 to register on JBO
"You can please some of the people some of the time but you can't please all the people'
all the time

AGX+Vogtland springs and i couldnt be happier!!!