Skip to content

Unitronic Stage 3 ECU Performance Tune C8 RS6 / RS7 4.0TFSI

Marsoni M251S
Sale price$1105.00
Pay 4 payments of $276.25 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Unitronic Stage 3 ECU Performance Tune C8 RS6 / RS7 4.0TFSIStage 3 ECU TCU Performance Software for the C8 RS6 and RS7 equipped with the 4. 0TFSI EA825 (DJPB) engine and TheTurboEngineers 1020 Hybrid Turbochargers. With testing and validations completed, power outputs are increased by up to +336HP +236LB FT with Unitronic Stage 3 (93octane 98ron) Performance Software for a maximum of 936HP 830LB FT when combined with Unitronic's Stage 3 AL952 TCU Performance Software for seamless operation. These software
Easy Shipping

Quick Dispatch:

Your Unitronic Stage 3 ECU Performance Tune C8 RS6 / RS7 4.0TFSI orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Unitronic Stage 3 ECU Performance Tune C8 RS6 / RS7 4.0TFSI ships.

Need Help?
Questions about Unitronic Stage 3 ECU Performance Tune C8 RS6 / RS7 4.0TFSI, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Unitronic Stage 3 ECU Performance Tune C8 RS6 / RS7 4.0TFSI in your area.

Get Shipping Estimates

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 487 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
G
Verified Purchase
Gabriel
Pawtucket, US
★★★★★ 3
Roller brush isn’t exact fit
Color: X10 Parts-14Pcs
Roller isn’t a perfect fit and makes a loud noise when in use. Other accessories work well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
K
Verified Purchase
Keith
Natrona Heights, US
★★★★★ 5
Good mix of accessories for my X10
Color: X10 Parts-14Pcs
Items all worked well with my X10
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
A
Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 5
Worked Perfectly
Color: X10 Parts-14Pcs
I didn’t realize the maintenance I had to do with robot vacuums but this was the best price for parts needed! Everything fit as it should.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2025
T
Verified Purchase
Tracey
Louisville, US
★★★★★ 4
The bracket that covers the roller brush is not part of the kit.
Color: X10 Parts-14Pcs
I guess if I had paid more attention, I would have noticed no bracket in the kit. My fault. I had to order a different roller brush that had the bracket. All good items, just more that I need at the moment. It would be nice to have the bracket included.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2024
J
Verified Purchase
JVAN
West Palm Beach, US
★★★★★ 5
Amazing service
Amazing service. Very easy to use. Will purchase again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026

recommand products