Dave2013M3
Well-Known Member
- Joined
- Aug 22, 2014
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- Location
- El Segundo,Ca
- Vehicle(s)
- 2020 Ford Mustang GT Base PP1 6MT Rapid Red
The FRPP X “street” and Y “track” springs are linear. They have a helper portion that gives the rear springs a progressive appearance, but the usable spring is linear.
Hear it from the engineer who designed them (at 2:00):
Beat me to it...also the spring rates are similar to a GT350 without Magnaride.
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