Progress Technologies RX8 Springs : 04-11

Progress RX8 Springs. The engineering staff at Progress has decades of experience in the design and tuning of performance suspension systems, including CART/Indy Cars, IMSA, SCCA, NASA, and SCORE competitors. These RX8 springs reflect their ability to develop a successful blend of appearance, handling capability, and ride quality.

These RX8 springs feature increased spring rates for upgraded handling capabilities as well as progressively wound springs for superior ride quality. These RX8 springs are designed to work with OEM shocks but will benefit from using high performance shocks such as our adjustable choices from Koni and Tokico. Progress specifies only certified high-tensile SAE spring wire materials. Their RX8 springs are cold-wound on modern CNC coiling machines, then stress relieved, pre-set, and shot-peened for maximum durability.

Features:
-Front drop: 1.2"
- Rear drop: 0.8"
-Front rate: 205 lbs/in
- Rear rate: 145 lbs/in
-Limited lifetime warranty!
-All spring kits are powdercoated metallic gray.

BRIAN'S APPLICATION NOTES: Install on 2009 or newer and you only get half the lowering listed above.