The largest selection of aftermarket parts and accessories for the FIAT globally!
One of our top recommended mods for those
looking to improve the performance and response!
The most advanced Plug and Play Performance Module available for your turbocharged FIAT. Designed to outperform all other Plug and Play Performance Modules or your money back!
The MAXPower Pro continues to be the top selling performance upgrade for FIAT vehicles.Learn More
The best just got better!
Improve throttle response and eliminate throttle lag.
Thousands of FIAT Owners from all over the world use our MADNESS GOPedal!
Find out why this is one of the best selling and reviewed upgrades available for your FIAT.Learn More
The best performance upgrades for your FIAT and the best deal around!
Check out the new MADNESS Power Packs that have just been released.
500 MADNESS is part of the MADNESS Autoworks family which is your One Stop Shop for customizing, accessorizing and servicing your favorite ride.
Our goal at 500 MADNESS is to provide you, our fellow enthusiast with the very best in products and services at reasonable prices with a personal touch. We treat our customers like family members and do our best to make sure every one of our customers gets the very best treatment possible.
...thanks again for all your help! You are always great and you guys have earned all of my business! I just paid via PayPal so you should be all set.Sean M
I love this site and your products are amazing. I am happy with all of these amazing things people can add to their FIATs! Grazie!Rocco Cosentino
This is the definite one-stop shop for anything you want or need to put AND keep your car in tip-top shape!Khalil Williams
MADNESS GOPedal - It is an amazing upgrade! With the MM module work amazing. Thank you guys you are the best.Cristiano Minchio
Special thanks to Justin is a super leader in customer service, A + + + +. Thanks again and look forward to doing business with you.Jose Aponte
I just wanted to Compliment You for the EXCELLENT SERVICE. I received an e-mail this morning indicating my parts had shipped. @2:00 this afternoon there they are at my front door!!! That is FANTASTIC ! You have a Customer for Life.Bob Powell
Thank you very much Art. Your help has been top class man. I will definitely refer you to anyone who may be looking for something.Joe De Vivo
It was great meeting everyone in your shop. Keep up the good work. Your shop and service is top notch.Gerald Johnson
IMO, the service is top end all the way, and the product I bought is absolutely awesome!C Thrasher
I couldn't be more pleased. Thanks to you, Rachel, John, Joseph, and the entire team! I walked out with a brand new car.Brandon
Wish I had your Customer Service Department where I work. You guys are GREAT.Charles Matthai
I can’t express the appreciation of customer service enough. Going straight to you guys for everything going forward the middle men constantly drop the ball.Nick Roman