Progress Technologies MX5 Springs. : 2006-2012

Progress MX5 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 MX5 springs reflect their ability to develop a successful blend of appearance, handling capability, and ride quality.

These MX5 springs feature increased spring rates for upgraded handling capabilities as well as progressively wound springs for superior ride quality. These MX5 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 MX5 springs are cold-wound on modern CNC coiling machines, then stress relieved, pre-set, and shot-peened for maximum durability.

-Front drop: 0.5" --- Rear drop: 0.5"
-Front rate: 126 lbs/in --- Rear rate: 116 lbs/in
-All spring kits are powdercoated metallic gray.
-Drop amount varies by 0.25" depending on shocks used.

BRIAN'S APPLICATION NOTES: These MX5 Springs were chosen by Mazda for their limited edition 2007 MSR package that now dominates the SCCA STOCK CLASS! The drop figures are for 2006-2008, you will get little to no drop on the 2009-2012. These are a great choice for those who want to replace the soggy factory springs, improve handling, without dropping the car a lot. For those who want MORE DROP than the half inch drop the springs provide, combine these springs with our KONI SPORT to reproduce that factory MSR package handling and stance for total lowering of about an inch. Even customers with the PRHT have been very happy with this spring choice (shown below on PRHT in combination with KONI SHOCKS that lower another half inch or so. We suggest adding our FCM Sport or Comfort bumpstops depending on your driving intentions.