IE Performance ECU Tunes for Audi B9 3.0T S4, S5, & SQ5

IE Performance ECU Tunes for Audi B9 3.0T S4, S5, & SQ5

Marsoni

M251S

$449.50

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

IE Performance ECU Tunes for Audi B9 3.0T S4, S5, & SQ5LEADING FEATURES Innovative mobile tuning for an easy install Thrilling power and acceleration gains 91, 93, & E85 optimized fuel maps Includes TrueFlex easy ethanol programming Stage 1 for stock hardware or basic bolt ons Stage 2 for aftermarket downpipe support Stage 3 for hybrid turbo upgrades Available with matching transmission tunes Apple & Android phones supported Take control of your Audi S4, S5, or SQ5 by unlocking thrilling power and

Easy Shipping

Quick Dispatch:

Your IE Performance ECU Tunes for Audi B9 3.0T S4, S5, & SQ5 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 IE Performance ECU Tunes for Audi B9 3.0T S4, S5, & SQ5 ships.

Need Help?
Questions about IE Performance ECU Tunes for Audi B9 3.0T S4, S5, & SQ5, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for IE Performance ECU Tunes for Audi B9 3.0T S4, S5, & SQ5 in your area.

Get Shipping Estimates

Country Zip/Postal Code

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

Still not sure about how this magnesium affects me. I have only been taking one tablet an hour or two before bedtime. Seems like sometimes I can’t go to sleep after taking it, charges up my brain. Other times I sleep but have crazy dreams. Maybe it works for some, but not others. I’ll try to finish the bottle, but the lack of sleep after taking the Magnesium L-Threonate makes me hesitant to continue some nights. That’s mainly the reason I purchased this brand to include the reviews.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 12, 2026