FS: Cobb Springs
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I bought these used and had them on for about 5K miles before upgrading to coilovers. I don't know the mileage from the previous owner, but they are in good condition. Spring Rates: F=345, R=438. Drop: F=.75", R=1". These springs are designed without a taper at the bottom like most, so they don't fit the lower spring mounts perfectly. Many people have run them without problems though. I used some polyurethane spring isolators as a precaution to prevent them from sliding around. Seen below is how I used them on my Koni shocks. I'll included the isolators so you can use them if you choose.
$120 shipped OBO.
Located in Nashville, TN for locals.

I bought these used and had them on for about 5K miles before upgrading to coilovers. I don't know the mileage from the previous owner, but they are in good condition. Spring Rates: F=345, R=438. Drop: F=.75", R=1". These springs are designed without a taper at the bottom like most, so they don't fit the lower spring mounts perfectly. Many people have run them without problems though. I used some polyurethane spring isolators as a precaution to prevent them from sliding around. Seen below is how I used them on my Koni shocks. I'll included the isolators so you can use them if you choose.
$120 shipped OBO.
Located in Nashville, TN for locals.

Last edited by jarrodh77; Jan 9, 2012 at 08:19 PM.
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This is on my autocross setup - 275/40/17 tires, which are shorter than OEM diameter in the rear so there is more rear fender gap. Also I had 0.5" cut off the rear spring mounts.
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No interest in one of the few linear rate springs available for the Z? Lots of people run these as-is with zero problems. I was just being extra cautious with the poly isolators since I've had trouble with squeaky suspensions in the past.
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If i run them as is, i.e without any new struts and all, will I be okay? It's a 03 Z. My winter set up is stock 18" with regular tires and for summers I run 20" rims with 245 up front and 275 tires in the back, if that matters.
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They'll be fine on the factory struts. The spring rates aren't so much higher than stock that you would have issues with them being under-dampened and bouncy.
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