IE ProCore Downpipe For Audi B9 S4 & S5

Marsoni

M251S

$1437.49

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

IE ProCore Downpipe For Audi B9 S4 & S5Details LEADING FEATURES IE ProCore Catalyst No check engine light High flow design Supports hybrid & large turbo power Increases sound Full and enriched exhaust note Bolt on direct fit No cutting, no welding, no hassle High Quality Stainless steel, TIG welded, & investment casting THE PROCORE ADVANTAGE IE's in house engineered ProCore Catalyst features our specialized tri core design with a specialty coating, enabling it to pass vehicle readiness

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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

I really liked the look and the buttons when I ordered it but I wound up returning only because I have to have a slim or fitted cut for any shirt to look good on me. This shirt did not hug me in the sides and looked like I was wearing someone else’s clothes. Nice shirt and good quality but it didn’t fit me personally. I did consider having it tailored but the cost of doing that was almost as much as the shirt.

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Reviewed in the United States on May 31, 2026

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Jason Stevens

Houston, US

★★★★★ 5

Cool comfortable good looks

Color: Navy Blue, Size: X-Large

Nice fit really comfortable good color not a hot shirt

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Reviewed in the United States on May 18, 2026

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Elle Cooper

Phoenix, US

★★★★★ 5

Perfect for in the field or the office.

Color: Blue Gray, Size: XX-Large

Perfect for use in the field or in the office. Great quality and the fit was perfect!!

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Reviewed in the United States on May 17, 2026

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M. Bracke

Cuba, US

★★★★★ 4

Good inexpensive shirt.

Color: Black, Size: X-Large

Nice shirt for the price. Good fit to size. Cotton/ poly blend. Does not wrinkle too bad after washing.

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Reviewed in the United States on December 8, 2025

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Robert

San Leandro, US

★★★★★ 1

Runs way too small

Color: Black, Size: Medium

If you live in the U.S. and wear medium, a large will fill you perfectly. I wear large and the “large” is objectively a medium in the chest arms and neck. Fix your sizes.

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Reviewed in the United States on February 28, 2026