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IE Audi 3.0T Performance ECU Tune | Fits B8/B.5 S4. S5, C7 A6, A7, Q5, SQ5

Marsoni M251S
Sale price$449.50
Pay 4 payments of $112.38 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
IE Audi 3.0T Performance ECU Tune | Fits B8/B.5 S4. S5, C7 A6, A7, Q5, SQ5IE's performance EA837 ECU calibrations for the Audi B8 B8. 5 and C7 3. 0T TFSI engines fully release the power potential in only minutes, all from your phone! Let your S4, S5, A6, A7, or SQ5 put a smile on your face and experience the power and thrills from your new tune as it transforms your car into a supercharged beast! APPLE & ANDROID MOBILE APP BLUETOOTH TUNING UP TO 548HP & 525TQ POWER YOU CAN FEEL INCLUDES FUEL OPTIMIZED 91, 93, 100, 104, &
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.5 ★★★★★
Based on 234 reviews
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Product Reviews
C
Verified Purchase
Craig Randall
Phoenix, US
★★★★★ 3
Cheap plastic parts -- good fit
They are what they are: Cheap plastic parts. They fit, but long-term durability will be a challenge. Probably will buy from FCP Euro going forward (and just did for a fuel line replacement).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2024
R
Verified Purchase
ruben rodriguez
Waukegan, US
★★★★★ 5
2001 325i
Great quality fits perfect durable. no more leaks works great. Great price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2024
F
Verified Purchase
Farrin Johnson
Whiting, US
★★★★★ 1
Does not connect
First the hoses do not connect together causing all kinds of vacuum leaks. There is no rifling in the diaphragm so oil leaks back up. Cheap piece of plastic
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2022
D
Verified Purchase
Dar ER
New York, US
★★★★★ 5
Amazon size charts need help
Size: Small, Color: Dark Denim
The dress is sharp. Well made. The Amazon size guide and AI size helper not so great. It was suggested to me to order a size large. Well I knew that was wrong so I went with the medium due to size chart. Still way too big. Had to return the medium and order a small . That also was too big and now had to order an XS . What a hassle. Please correct the size chart. Would very much appreciate the accessories listed that the model is wearing such as who’s boots she is wearing
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Reviewed in the United States on January 16, 2026
R
Verified Purchase
ravit black
Lowell, US
★★★★★ 5
Super cute top!!
Oversized so size down. Also a little see through but overall Extremely happy with the look and quality of the shirt!!
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Reviewed in the United States on February 6, 2026

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