Skip to product information
1 of 7

Stage 3 AI OBD2 Performance Chip for Fiat | Plug-and-Play Engine Tuning Module +40 HP / +45 TQ


Engine Modifications (If any)
Tuned for
Engine Size

Regular price $199.95
Sale price $199.95 Regular price
Free Shipping within USA.

  • Fully secure checkout
  • Trusted by thousands
  • Rated and reviewed

Want it soon? Be quick! Limited stock

I18n Error: Missing interpolation value "end_date" for "Ends on {{ end_date }}"

Question about this product?

We're happy to help.

Inject Pure Italian Passion into Your Fiat

Small car, big personality. Now, give it the heart of a Scorpion.

Your Fiat is the embodiment of fun—agile, stylish, and full of character. But let’s be honest: factory tuning can sometimes make it feel like it’s had decaf. The 1.4L MultiAir engines, while brilliant, often suffer from hesitation off the line and a lack of passing power on the highway.

The Stage 3 "Competizione" Performance Module is the espresso shot your engine needs. Engineered to wake up the 500, 500X, 500L, and 124 Spider, this OBDII module sharpens the throttle and boosts torque, turning your daily commute into a spirited Italian getaway.

Eliminates Turbo Lag. "Abarth-Style" Response. Fun to Drive Guaranteed.


Why Upgrade to Stage 3?

  • Zippier Acceleration: Safely unlock up to +35 Horsepower and +40 ft·lbs of Torque (on 1.4L Turbo models). Feel the car jump forward the moment the light turns green.
  • Fix the "Hesitation": Modern Fiats are known for a delay between pressing the pedal and the engine responding. We tighten the signal processing to make the throttle feel instant and connected.
  • Highway Confidence: For 500X and 500L owners, the added torque makes merging onto freeways and passing trucks significantly safer and less stressful.
  • MultiAir Optimized: Specifically calibrated to work with Fiat’s unique MultiAir valve technology, ensuring power delivery is smooth across the entire RPM band.
  • Universal Compatibility: Works on the naturally aspirated 500 (Pop/Lounge), the Turbo 500, the Abarth, and the 124 Spider.
  • 5-Minute Install: Plugs directly into your OBDII port inside the cabin. No tools, no mechanic, and no greasy hands.

Smart Tuning for the "Cinquecento" Spirit

Fiat engines are high-tech marvels, but they are often strangled by emissions settings. The Stage 3 Tuner unlocks the fun factor.

The 1.4L Turbo Solution: This engine is famous for being "all or nothing" with its power. Our chip smooths out the boost curve, bringing the power in earlier (around 2,500 RPM) so you don't have to rev the engine to the moon just to get moving.

For the 124 Spider: It adds the mid-range punch that the chassis deserves, making it feel more like a classic roadster with modern power.

For the 500 Abarth: It takes the already aggressive mapping and sharpens it further, maximizing the pop, bang, and pull of the Scorpion.


100% Safe & Reversible

We know you love your Fiat. The Stage 3 Performance Chip is 100% safe. It does not permanently rewrite your factory software.

Warranty Safe: Because the device leaves no digital footprint or "flash counter," your warranty remains intact. If you need to visit the "Studio" or dealership for service, simply unplug the unit. Your Fiat returns to stock instantly.


Choose Your Performance Profile

The Stage 3 "Competizione" is our top-tier option, bringing the spirit of the track to the city streets.

Performance Module HP Gain (Turbo Max) Torque Gain (Max) Primary Benefit
Stage 1 +15 HP +15 ft·lbs City Fuel Economy
Stage 2 +25 HP +28 ft·lbs Highway Merging Power
Stage 3 (Competizione) +35 HP +40 ft·lbs Maximum Agility & Fun

Frequently Asked Questions

Will this work on the non-turbo Fiat 500 (Pop/Lounge)?
Yes. While the horsepower gains are more modest on the non-turbo engine, the main benefit is throttle response. It eliminates the sluggish feeling, making the car feel much lighter and peppier around town.

I have a 124 Spider. Is this compatible?
Absolutely. Even though the 124 Spider shares a chassis with the Mazda Miata, it uses the Fiat 1.4L Turbo engine. Our chip is specifically tuned for this Fiat engine to maximize torque for corner exits.

Does it affect the "Sport" button?
It enhances it! When you press your Sport button with the chip installed, the steering tightens (stock feature) and our chip delivers an even more aggressive throttle map. It turns "Sport" mode into "Track" mode.

Is installation hard?
It’s incredibly easy. The OBDII port is located under the dashboard on the driver's side (often behind a small plastic cover). Plug it in, and you are ready to go in 60 seconds.

☕ Ciao, boring drives. Add to Cart and Wake Up your Fiat today.


Engine Safety Rating
Difficulty 


Fitment

Make

Fiat

Engine Size

  • 0.9L
  • 1.0L
  • 1.1L
  • 1.2L
  • 1.3L
  • 1.4L
  • 1.6L
  • 1.8L
  • 2.0L
  • 2.4L

Year

  • 1996
  • 1997
  • 1998
  • 1999
  • 2000
  • 2001
  • 2002
  • 2003
  • 2004
  • 2005
  • 2006
  • 2007
  • 2008
  • 2009
  • 2010
  • 2011
  • 2012
  • 2013
  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • 2021
  • 2022
  • 2023
  • 2024
  • 2025
  • 2026

Installation

100% Plug and Play
Stage 3 AI OBD2 Performance Chip for Fiat | Plug-and-Play Engine Tuning Module +40 HP / +45 TQ

$199.95

Does it come with a warranty?

All our products come with a limited time lifetime warranty. See terms.

What happens if I don't like it?

Returns are accepted. Please see our Terms and Conditions.

How fast is shipping?

We try our best to ship the next day. Depending on your location it can be as fast as 3-5 days for delivery within 48 states.

What's the returns policy?

No worries. Contact customer support for a return authorization.