


Unitronic Stage 1 ECU Performance Tune C8 RS6 / RS7 4.0TFSI
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Unitronic Stage 1 ECU Performance Tune C8 RS6 / RS7 4.0TFSIThese software upgrades are entirely compatible with the UniCONNECT+ cable, Which allows you to tune your vehicles directly through the OBD 2 port within minutes, from the comfort of your own home. Features Optimized Responsiveness, Smoothness, Drivability, and Comfort Unitronics ECU calibrations are engineered to improve engine response and reduce low end lag. Unitronics Performance Software has gained worldwide recognition and is well known for its
Quick Dispatch:
Your Unitronic Stage 1 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 1 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
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4.7 ★★★★★
Based on 1963 reviews
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Product Reviews
★★★★★ 5
Get these! You won't regret it!
These are my go-to winter shoes! They are waterproof- I love them bc they don't look like your typical "rainboots"! Stylish- I get compliments everytime I wear them! Comfortable- first time I wore them they were tight through the middle of my foot, but after two wears I had them nice and broke in, now my most comfortable shoes!
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Reviewed in the United States on February 17, 2021
★★★★★ 3
So nice but not a good fit on my foot
I love these boots so much, they’re exactly what I wanted. Unfortunately, they are too big in the heel and flop, while too tight in the toe. I know the toe would stretch with wear, but can’t deal with a floppy heel, they pulled my socks down off my feet. I do have narrow feet. Too bad, I’m so disappointed! They seem well made and would go with everything. Comfortable, too, if they fit right.
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Reviewed in the United States on October 31, 2018
★★★★★ 5
Extremely comfy!!!
I’m from Alaska and these boots are amazing!! I’m ordering a second pair. Cute for the office, but also 100% keep your feet warm from Snow or water.
These are so Comfy
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Reviewed in the United States on April 3, 2021
★★★★★ 5
Best boots I have ever purchased
I do appraisal work so I was looking for something cute/professional yet durable and rugged for when I work outside in all types of weather. Found it! So comfortable, so cute, and waterproof. I wear them most days for both office work and inspection work. I range between 8.5-9 and I got a 9 and they fit great both with thin socks or thick socks. I very highly recommend.
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Reviewed in the United States on October 7, 2020
★★★★★ 5
Perfect for travel... very comfortable!
These things are amazing! I bought these a couple weeks before a trip to Italy and had planned on doing a lot of walking in them. I only got to wear them a couple times before we went on our trip, but no blisters, even during LOTS of walking in them on the trip! They wore in super quickly while still keeping their durability. My feet stay dry even in lots of rain. The photos show the wear on them after a few months, including a couple weeks of travel, and weeks of wear around town.
My only complaint is that there is a tiny something (a little knot of thread with glue? not sure...) that is at the top of the opening of the boot, and it rubs the back of my ankle and makes a sore. That isn't enough to make me not wear them though. There's a photo that shows this. As you can see it's super tiny, and probably not even a flaw, it just hits my ankle *just* right so that it rubs.
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Reviewed in the United States on August 10, 2018