

Performance ECU software upgrade improves horsepower, torque, and driving characteristics of the M276 3.0L V6 Bi-Turbo Engine by reprogramming various sensor inputs, air/fuel ratios, and boost pressure.
NOTE: This is not a physical/shipped product. This upgrade requires you to send us your ECU for re-programming. You will be emailed a download link with detailed instructions after adding this to your cart and checking out. Special requests and tune file upgrades may be subject to additional fees.
SHIPPING DETAILS: Shipping costs for sending an ECU to Fabspeed is the responsibility of the purchaser. The ECU will be tuned within 24-48 hours of receiving it and Fabspeed will then ship back the ECU using whatever method it was shipped in with. (For example: If you send in your ECU via Ground shipping, we will ship it back via Ground. If you ship it via Overnight, we will ship it back via Overnight.)
FEATURES:
Fits all Mercedes-Benz AMG 43 M276 3.0L V6 Bi-Turbo Vehicles: C-Class / E-Class / SLC-Class / GLC-Class / GLE-Class
Stock - 362 HP / 384 TQ
Tuned - 427 HP / 454 TQ
Fabspeed Motorsport saves your stock/factory ECU settings so that you can revert your vehicle back to stock settings at any time
Purchase Disclaimer: Fabspeed Motorsport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Fabspeed Motorsport will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls.
We're currently working to get more reviews for this product. In the meantime, please take a look at our reviews from other platforms.
I have nothing but good stuff to day about working with Fabspeed. From start to finish which includes working with someone on message boards for my M235i, finishing the sale, the product finish, and the east of installation and and final look and sound with my sport cat and muffler delete system with some awesome carbon fiber tips.
Great team and outstanding products. Thank you DJ for all your help getting my Porsche 991.1 all setup and sounding amazing.
Been a regular customer for a while now and I must say that they're the best at what they do! Bought a number of upgrades for my 991.1 911 Turbo from Scott and absolutely love the extra power and sounds! Top notch quality and service, would recommend to anyone looking to upgrade their car at any level of performance.
i have their secondary cat by pass pipes and maxflow mufflers on my 958s. i also have their supersport exhaust on my 991. both sound amazing. i recently had a minor concern/problem and contacted them. john palo reached out to me the next day and sorted everything out. its been well over a year since i purchased and he took care of me no questions asked. johns customer service is top notch and i just wanted to write this review to thank him. great products and even better customer service, thanks fabspeed and john!
Total satisfaction! The crew at Fabspeed is top notch and makes a incredible product. My Porsche has come alive with their new sport cats. Look forward to adding more products from Fabspeed.