IE Performance ECU Tunes For Audi B9/B9.5 2.9T RS5 & RS4

IE Performance ECU Tunes For Audi B9/B9.5 2.9T RS5 & RS4

Marsoni

M251S

$449.50

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

IE Performance ECU Tunes For Audi B9/B9.5 2.9T RS5 & RS4LEADING FEATURES Innovative mobile tuning for an easy install Thrilling power and acceleration gains TrueFlex Tuning for flex fuel ethanol 91, 93, & 104 fuel maps (95, 98, 108 RON) Stage 1 for stock hardware or basic bolt ons Stage 2 for aftermarket downpipe support Available with matching transmission tunes Apple & Android phones supported Take control of your Audi RS4or SQ5 by unlocking thrilling power and acceleration from your phone! Our cutting

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These are quite nice and also sturdy. Only complaint I have is that I bought a couple of these, and on one of them, only one of them, it was difficult to get the hidden mounts to go into the holes. I think it was probably a manufacturing defect thing. Also, on that particular one, it wasnt as level as the other. Not a show stopper, but if you need a perfectly level type of mounting situation, I would be careful here.

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Reviewed in the United States on September 14, 2025

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NatKenneally

Omaha, US

★★★★★ 5

Great value/easy to install.

Size: 24x6 2Pcs, Color: Black, Size: 24x6 2Pcs, Color: Black

Great product and great value. Easy to install and adds a nice touch to a bathroom.

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Reviewed in the United States on March 21, 2026

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