Unitronic Performance Downpipe for B9 S4/S5 3.0TFSI

Unitronic Performance Downpipe for B9 S4/S5 3.0TFSI

Marsoni

M251S

$1317.49

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

Unitronic Performance Downpipe for B9 S4/S5 3.0TFSIDescription The Unitronic Performance Downpipe for the 2017+ S4 & S5 3. 0TFSI EA839 (CWG) engine is a direct bolt on upgrade, designed to optimally eliminate unwanted restrictions in the factory downpipe, reduce turbo lag and enhance the exhaust note. It utilizes a 6 400cpsi ultra high output catalytic converter, designed in partnership with Unitronic, from our emissions partners at Global Emissions Systems Inc (GESi). Paired with Unitronic Stage 2

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These are really nice kicks. Stylish, comfortable, and eye catchy for sure. Not too heavy, good price, and fit well. These are great, casual white shoes for a summer outfit. I gave it 4 out of 5 stars as these do pick up and hold onto dirt and smudges more than I’d like to see. Yes, I know, white shoes are magnets for this stuff, but these tend to scuff and discolor more than I would have assumed. I live in an area with lots of bad weather most of the year so I only get a chance to wear them for a few months of the year unless I want to brave the wet and muddy weather. If you live in an area that has lots of sun and are willing to put these to the test and clean them often, I would say go for it.

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Reviewed in the United States on January 13, 2026

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fred crane

Fort Morgan, US

★★★★★ 5

Terrific shoes

Size: 8.5, Color: Cognac

Fit is perfect. Looks great. Comfort is terrific. Wood buy them again.

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Reviewed in the United States on November 8, 2025

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