Alfa Romeo 4C - Performance ECU by MADNESS - 91 Octane

Alfa Romeo 4C - Performance ECU by MADNESS - 91 Octane
Alfa Romeo 4C - Performance ECU by MADNESS - 91 Octane
Alfa Romeo 4C - Performance ECU by MADNESS - 91 Octane
Alfa Romeo 4C - Performance ECU by MADNESS - 91 Octane
Alfa Romeo 4C - Performance ECU by MADNESS - 91 Octane
Alfa Romeo 4C - Performance ECU by MADNESS - 91 Octane
Product Information

Inquire for Price and options

Lowest Price Guaranteed
Average Rating

Available Options

Drive now, Pay later with Affirm
or with PayPal

Both options will be available upon checkout.

Upgrade the performance of your Alfa Romeo 4c with our MADNESS ECU Clone.

Special Order Item - Please allow 3-4 weeks for delivery.

This performance ECU from MADNESS is designed to digitally connect with your car after its first start and unleash your cars full potential. This direct ECU replacement has proven to be a reliable, proven way to get extra power from your Alfa Romeo 4c. No one in North America has tuned and modified more Alfa 4c vehicles then MADNESS Autoworks. We do not overpromise and over estimate power gains! If you want a reliable, trouble free power upgrade for your 4c we encourage to select our MADNESS ECU Close. Please check out our video below that shows how we tune and dyno and check out the dyno charts posted for verification of power.

Please note! We do not use dash mounted dynos (like Auterra) for our power claims. Using dash mounted modules like Auterra will result in significantly higher, but also inaccurate dyno numbers.

  • Reversible switch to the original OEM ECU
  • Spare/ Clone ECU included
  • Genuine Alfa Romeo ECU
  • Specifically mapped for each region/ fuel type
  • This version of the ECU is mapped for 91 Octane Fuel. Please check our other listing for a 93 Octane Version

As always we are here to answer any questions you may have. Call us for assistance and we will be happy to help.

All dyno testing shown was done in Southern California using California 91 Octane Fuel. Higher result are attainable with higher octane fuel. If you are in an area that has higher octane fuel your results should be slightly higher. 

About Manufacturer

MADNESS Autoworks is your One Stop Shop for customizing, accessorizing and servicing your favorite ride.

After spending over a decade customizing countless vehicles and working with many local and international suppliers we have been fortunate to be able to offer a very large inventory of products to our fellow enthusiasts. However, at times we have found that what was available was not good enough or perhaps other options were also needed. When this happens we either design and manufacture the product ourselves or tap one of our manufacturing partners and ask them to assist and make a product to our specs.

Over the years that we have been in business we have formed a number of partnerships with our most trusted manufacturing partners and suppliers to help us produce products that we felt were needed and not available. At times we have also invested in infrastructure, manufacturing equipment and have recruiting some of the best talent that could help us design and build superior products and make them available to our fellow drivers.

Our goal at MADNESS is to provide top quality products that has been tested and used in our own vehicles and have proven to last and provide a good value for the investment. We do not design and build our products to be the cheapest, we design then to be the best value for the money and stand behind them the same way we stand behind our work.

Product Reviews

Average user rating

5 / 5

2 reviews


Two locations to serve you


22108 SH 71 W.
Spicewood, TX 78669
Mon-Fri: 9 AM - 6PM CST
Sat-Sun: Closed


2716 Dawson Ave.
Signal Hill, CA 90755
Mon-Fri: 9 AM - 6PM PST
Sat-Sun: Closed