Nine Lives Racing Medium Downforce Kit – NC MX-5 Miata (2006–2014)

CFD built, Wind-Tunnel Tested. Track-Proven. Perfectly Balanced.

Bring true motorsports aero to your NC MX-5 Miata (2006–2014) with the Nine Lives Racing Medium Downforce Kit — a fully engineered, wind-tunnel-validated aerodynamic package designed to deliver 1,026 lbs of total downforce while actually reducing drag by 10 lbs compared to a stock NC Miata body.
More grip. More stability. More speed. Less drag.

Built specifically for track drivers, time attack racers, and NASA ST-5 / TT-5 / GLTC competitors, this kit is the most complete and most proven downforce package ever released for the NC chassis.

 Proven Performance for NC Miata Track Cars

This exact combination of parts has been tested together to produce a massive 1,026 pounds of downforce with better aerodynamic efficiency than stock.
The result?

• Faster cornering

• More stability at high speed

• Better braking performance

• Reduced drag for higher top speed

 What’s Included in the Medium Downforce Kit

✔ 4-Inch Front Splitter Kit

Maximum front grip with a large 4" extension designed for race-legal downforce in ST-5, TT-5, GLTC, and similar classes.

✔ Sturdy Boii Splitter Mount Kit

Chassis-mounted quick-disconnect splitter mounts using Southco hardware. Easy removal. Rock-solid strength. Perfect angle every time.
More info here. 

✔ Air Dam (Model-Specific)

• NC1 (2006–2008): Comes with the large air dam for maximum sealing and performance.

• NC2 & NC3 (2009–2014): Equipped with the compact air dam, optimized for their updated bumper shape.

✔ Splitter Ramps (All Models)

Directs airflow more efficiently under the car for better pressure recovery and more stable downforce.
More info here 

✔ Wing Options

You may choose this kit with or without a rear wing.
If you already own a 9LR wing, select “No Wing” at checkout.
Learn about the wing here 

⚠️ Warning:
Do NOT run this kit without a rear wing.
This package creates extreme front downforce. Running it without a wing can cause catastrophic loss of control, serious injury, or death.

Engineered for Real Racing Classes

The Medium Downforce Kit for the NC MX-5 Miata is designed within the rulesets of:

• NASA ST-5

• NASA TT-5

• GridLife GLTC

• SCCA Time Trials & Club Racing

• Most splitter + wing legal race series

Our aero parts are track-tough, CFD-validated, and wind-tunnel proven — giving competitive drivers an edge without guesswork.

Compatible With All NC MX-5 Miatas: 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014

This full aero kit fits:

• NC1 MX-5 Miata / Miata 3rd Generation (2006–2008)

• NC2 MX-5 Miata (2009–2012)

• NC3 MX-5 Miata (2013–2014)
  Designed for track cars, racing builds, and hardcore drivers that want real, measurable performance.

Built for Serious Track Drivers

If you're chasing lap times, class wins, or improved stability at high speed, this Medium Downforce Kit transforms your NC Miata into a planted, confidence-inspiring weapon. Every component has been chosen and tested as a system to create the perfect front-to-rear balance with minimal drag penalty.

🔥 Dominate Your Class with Real Aero

Get wind-tunnel numbers, race-proven reliability, and perfectly balanced grip with the Nine Lives Racing Medium Downforce Kit for the NC MX-5 Miata.