APR develops and manufactures hardware, software, calibration & information-logging equipment for engine and transmission controllers, together with intakes, exhaust systems, intercoolers, turbocharger systems, suspension, brake systems, wheels, and more.
Lowers 22 mm or .87 in Entrance / 29 mm or 1.14 in Rear (DCC)
Will increase Spring Fee 36% or +seventy two lbs/in at 274 lbs/in Entrance / 50% or +one hundred forty lbs/in at 420 lbs/in Rear (DCC)
Twin Fee Spring (164 lbs/in to 270 lbs/in Entrance)
Twin Fee Spring (320 lbs/in to 420 lbs/in Rear)
Operates as a single Fee “linear” spring all over loaded usage
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