FS: New Tein Super Street Springs
 

I have a set of new Tein Super Street coil springs. I dynoed these springs and the characteristics are as follows:

Front: T120 EEC, Tapered body, Progressive rate: average 11.4 kg/mm around mid stroke. The rate appears to start off around 9 kg/mm and increases to just under 13 kg/mm after about 80mm of stroke. Large end ID: 87.6mm, Small end ID: 72mm

Rear: J100 EKC, Tapered body, Progressive rate: average 9.5 kg/mm around mid stroke. The rate appears to start off around 8 kg/mm and increases to just over 11 kg/mm after about 80mm of stroke. Large end ID: 98.6mm, Small end ID: 72mm

These springs appear to have been designed for 100mm of stroke. It's recommended that a jounce bumper be used to limit a portion of the jounce travel, in order to keep the stress levels at bay.

This is a set of 4 new springs, 2 front, 2 rear. They have squared and ground ends, so they'll work on any damper with flat perches or appropriate spacers. They've never been on a vehicle, but there are some minor scuffs on the ends from handling.

I'd like $300 for them, OBO.