Koni/Progress Suspension Package for NC

DESCRIPTION

Want the easy button for maximum street FUN with comfort? Look no further than our Suspension Package for the 2006-2015 Mazda MX-5.

What's included with the package:

1 x Progress Spring Set for either NC1 or NC2 according to your selection in the drop-down menu.

2 x Koni Sport FRONT Shock

2 x Koni Sport REAR Shock

1 x Sport Bumpstop Kit (36mm Front / 58mm Rear)

Good-Win Racing Application Notes:

Our new favorite for around town fun that looks great with mild lowering and rides great with super mild lowering springs. The Progress springs have the perfect amount of spring rate to make the car more composed in the turns without causing a harsh ride day to day. These are also a great choice for those who want to replace the soggy factory springs.

Want more? The included Koni Sport Shocks are rebound adjustable which let you take the ride from soft to stiff with the turn of a dial. If you are headed to the mountain and canyon roads then crank up the dial, and lean on them in the turns and you will find the car is MUCH more predictable and faster through the curves. When you are ready to head home, simply adjust the shocks down and drive home in comfort.

Ride heights with this combo are about 1" lower than stock, but note there is some variation between cars and that comparison also depends on the age of your current shocks/springs.

INSTALL NOTES: It is important to not lock down the bolts to the suspension after install while the car is suspended in the air with the suspension fully extended. Bounce it on the ground, then give it a drive around the block with the bolts just snug so you get it to settle before you torque everything ON THE GROUND. Most shops will NOT know to do this...SMART CUSTOMERS PRINT ALL THIS PAGE FOR THE INSTALLER! See details in our forum installation section, thread is titled: "Spring Installation, Mazda Workshop Manual Notes" and factory TSB notes below. Once you do it right, drive it 500 miles and then do it again (which usually results in another quarter inch or more of lowering)....and then do the alignment. ROCKY'S TIPS: Our head mechanic Rocky has his own method that seems to work even better than the factory TSB. Once he finishes install at each corner he jacks up just that corner with BOTH UPPER AND LOWER LINKs loose, so the full weight of the car is compressing just that corner, then he torques the bolts...and he finds car will still settle with 500 miles but usually only another 1/8th inch.

Shock Tower Brace Note:
The factory optional front shock tower brace covers the top of the front shock, blocking access to the adjustment knob on the top of the shock. If your car has that brace, you have three options: 1) Remove the brace 2) Drill a hole in the brace to allow access 3) Replace that factory brace with an aftermarket one like our RoadsterSport front shock tower brace, which is both stronger and lighter and leaves the area above the shock open for easy access to the adjustment.

ALIGNMENT:

Alignment depends much on what you do with the car. Assuming no autocross or track use, for pure street driving my suggestion is:

Front Camber -1.8
Toe IN 1/32nd per side (some shops call this 1/16th 'total' toe in).
Caster 6.5

Rear Camber -1.2
Toe IN 1/32nd per side
Racers will take much more camber (and usually full coilovers instead of just these very mild street springs). Autocross customers will toe OUT the front, track users usually toe ZERO front and rear.

Install below on Customer Paul Young's MX5 Club, heights immediately after install using the Rocky method explained above, 13.5 front, 14.0 rear.

And soft top version of Club, same Progress springs, same results of 13.5 front, 14.0 rear.

These are an evolution of same springs that Mazda sold in the factory optional MSR package for 2007 MX5 that DOMINATED the Stock/Street SCCA Autocross class for years. Take a ride in a fast MSR and notice how fast and stable an MX5 can be with these springs as part of the package that includes our FCM stops and KONI Sport shocks and Progress Sway. Nonetheless, if your plans include regular track days and autocross beyond stock classes you should go direct to our many coilover choices for full control over heights and more spring rate to support wider tire combos, including any 17x9 or wider choices. The stock class guys these springs were originally designed for were limited by the stock class rules to stock width 17x7 wheels, and we suggest no more than 17x8 with this relatively soft setup.

Customer Chip Barclay's Miata below with our Progress Springs, KONI SPORT Shocks, and our 17x8 Advanti Racing Storm S1 Wheels.