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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
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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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4.7 ★★★★★
Based on 911 reviews
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Verified Purchase
Hayley
Charlottesville, US
★★★★★ 5
Perfect for 24 CRV
Style: 1.5L
Worked perfect in my car and saved me some money!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
A
Verified Purchase
Ayra G.
Houston, US
★★★★★ 5
Savings!
Style: 2.0L
Very affordable and fits like the factory one. Don’t pay the dealer hundreds! Just do it your self.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
A
Verified Purchase
Amazon Customer
Natrona Heights, US
★★★★★ 2
Not compatible with Honda CRV 2023
Style: 1.5L, Style: 1.5L
Pretty disappointed that the description did not match what my car actually needed. THIS IS NOT COMPATIBLE WITH A HONDA 2023 CRV Engine Air filter… Just glad the cabin air filter worked. Having to buy another one… The image attached is what I needed to replace.
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Reviewed in the United States on January 18, 2026
M
Verified Purchase
Manuel Miranda
Waukegan, US
★★★★★ 5
Very good
Size: CRV (2023-2025) 1.5L Gas
Look like original
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
I
Verified Purchase
Isaiah
New York, US
★★★★★ 5
Fits 2023 Honda Civic Sport Touring Hatchback
Size: CRV (2023-2025) 1.5L Gas
Fit as a smooth clean replacement for OEM civic filters.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 22, 2025

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