In studying the 2012-17 Fiat 500 1.4L Turbo (including Abarth) and 2013-16 Dart 1.4L, we found the stock throttle body necked down a decent amount in the throttle body bore. When the inner bore necks down, it restricts incoming air and makes the car less throttle responsive and fun. We also found that the throttle body was assembled with much larger than needed screws with a large button head and threading that went past the butterfly plate.

So, the tapering of the throttle body combined with the oversize screws impeded airflow, and creates a less than optimal enthusiast driving experience!

That lead to us porting out a TB, installing a larger butterfly plate, using flush screws versus the factory huge screws. We opened up the inner bore nicely and improved air flow into the intake manifold quite a bit.

By doing this, we were able to gain a solid 6 hp at the wheels, and make our Dart 1.4L Turbo even more fun to drive as the throttle was more responsive!

Porting out a throttle body like the Dart's is not an easy task! The Fiat/Dart 1.4L uses a drive by wire throttle body which means that the throttle body is driven by a motor. So, in order to bore out the throttle body we need to disassemble the drive by wire throttle body, remove the motor and gearing, remove the throttle plate and screws, bore it out, install a new throttle plate, and reassemble.

Now, we begin with BRAND new MOPAR tb's that we port, that you buy outright. This means you get a brand new drive by wire throttle body with motor. You can reuse your rubber intake manifold gasket.

This throttle body works great with both automatic and manual transmissions!

Quick summary:

• Improves throttle response, makes for more fun driving! You can daily drive your car, even in rush hour traffic with no problems!
• Horsepower and torque gain across the board!
• NO check engine lights, no idle problems, no issues at all!

After you receive and install the throttle body, do the throttle relearn procedure:

• 1. Turn off all accessories
• 2. Insert key and turn to "ON" (Not Start)
• 3. Wait for the "DING" to depress throttle to the floor fully until check engine light flashes
• 4. Hold until CEL stops flashing
• 5. Turn key to "OFF"
• 6. Release throttle
• 7. Wait 2 minutes before start-up

Fits:
2012-17 Fiat 500 1.4L Turbo 2013-16 Dart 1.4L 2015-2018 Renegade 1.4L 2014-2019 500L

We have also been able to confirm it fits the 2016-2021 Fiat 124 Spider 1.4 Turbo.

Note: This only works for models in the U.S / Canada / Mexico as the connector plug is different from models outside the North America region.

Note: we used to have a program where we would buy your used oem throttle body back from you but this program is now discontinued, sorry.

Modern Performance is the Dart expert!
Modern Performance has been in business since 1997. Since the late 1990's, we have developed, and carried in stock parts for Chrysler 4 cylinder cars. We are Dart experts, as we have owned two Darts since 2013/2014, one being a 1.4 Turbo, and the other a 2.4 GT. Our warehouse is located in Houston Texas, and we stock tons of product for same day shipping. We hope we can help you with your Dart parts needs soon!