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

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

Marsoni

M251S

$1105.00

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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We offer a 30-day return/exchange service after receiving.
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I bought these in anticipation of my upcoming lasik procedure. These things look great and the seller even included a cleaning kit in box. As someone who is 6'3" with a larger head, these sunglasses are snug without being uncomfortable. I actually love that since my current prescription sunglasses are so loose on my head that they can fall off during light activity or when I sweat. Now that I have my pick of the litter with sunglasses, I could not be happier with the money I spent on these and the quality that comes with them.

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Reviewed in the United States on February 19, 2026

Verified Purchase

marie english

Massapequa, US

★★★★★ 5

Great glasses

Color: Black/Dark Grey, Lens Width: 65 Millimeters

Love them. Fit perfectly. Most important, it really blocks the strong sun rays.

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Reviewed in the United States on May 26, 2026

Verified Purchase