derieuz
The Young Fella'
- Joined
- May 21, 2014
- Threads
- 115
- Messages
- 792
- Reaction score
- 154
- Location
- Southeast Michigan
- Vehicle(s)
- 2015 Mustang GT PP
Sportlines are only stiffer by 3 N/mm , so about 17 pounds per inch. Not sure how much stiffer that is. Stock is 28 n/mm, the pro kit is 35-55 (progressively stiffer) and the sportlines are 38-58 (progressively stiffer), so the pro-kit is 25%-96% stiffer while the sportlines are 36%-107% stiffer than a stock GT, now I do not know the stiffness of the performance pack springs, if someone could inform me this would be great. Apparently the pro-kit is not much stiffer at all than the performance pack springs. Having sportline fronts and pro-kit rears would be like the BMR handling springs where they stiffen up the front for cornering and stiffen up the back, but not as much as the drag kit. You would feel more road bumps with the sportlines and it would be harsher ever so slightly.Are the sport line springs any stiffer than the pro fronts?
I emailed Eibach to see if it ruins any handling characteristics by mixing these two springs, I am waiting for a response.
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