Unitronic Stage 2 ECU Performance Tune C8 RS6 / RS7 4.0TFSI

Unitronic Stage 2 ECU Performance Tune C8 RS6 / RS7 4.0TFSI

Marsoni

M251S

$765.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Unitronic Stage 2 ECU Performance Tune C8 RS6 / RS7 4.0TFSIUnitronic Stage 2 : 819HP 760LB FT STOCK POWER: 621HP 627LB FT For Audi C8 RS7 Performance 4. 0 TFSI EA825 Change Vehicle Octane 93 Octane 98 Ron gas 91 Octane 95 Ron Gas HP +198 LB FT +133 Description Unitronic Stage 2 Performance software is precisely calibrated for use with 93 AKI 98 RON fuel. NOTE: An SFD SFD2 unlock may be required for some MY23+ models. Click HERE for more information or contact Unitronic to learn more today. Power figures may

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

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Fast: 2-3 business days
Express: 1-2 business days

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You'll receive a tracking link by email once your Unitronic Stage 2 ECU Performance Tune C8 RS6 / RS7 4.0TFSI ships.

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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.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

This suit was a pleasant surprise in quality! Just note, sizing isn’t perfect since it’s a set, so the pants were really long and the waist slightly bigger than my husband’s actual size, as we had to fit for his chest and shoulders. However, we were able to hem the pants quite easily and he just wore a belt which worked perfectly. For the price and quality you receive, well worth it. We ended up using a different tie than given so it would match my dress. Worth every cent even if worn once since rentals are way more expense. This held up for a full 8hrs of schmoozing and dancing and is still in great shape.

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Reviewed in the United States on March 23, 2025

Verified Purchase

Things that I love

Whiting, US

★★★★★ 5

Definitely worth it

Size: Small, Color: Navy Blue, Size: Small, Color: Navy Blue

If I could give 10 starts I would. Really good quality, fits super well and color matches perfectly how is advertised. Delivery quick.

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Reviewed in the United States on April 2, 2026

Verified Purchase

Amazon Customer

New York, US

★★★★★ 5

Suit for Prom

Size: Large, Color: Navy Blue

My son (17) ordered this suit to wear to Prom (2 weeks before) and it was a hit! Great Quality and great fit! He even convinced a few of his friends to buy their suits here too! Would purchase again for sure!

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Reviewed in the United States on May 20, 2026

Verified Purchase

Cathy C

Houston, US

★★★★★ 5

This is a terrific purchase.

Size: Large, Color: Navy Blue, Size: Large, Color: Navy Blue

Amazing for the price. It’s a wonderful suit fit just right for a 5’10”. 145 pound male. The quality is surprisingly wonderful for this suit and the color is accurate. As in the picture it is a slim fit and accentuates his figure. I would highly recommend this for a purchase. (be sure to use the measurements on their description before ordering). After a steam and a press we were ready to go. The packaging was very nicely done also.

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Reviewed in the United States on February 21, 2026