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.
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I don’t expect this filter to last as long as the original filter but that’s okay because it is about half the cost. It looks well made. I didn’t see any flaws. I chose this filter because it had some of the fewest complaints regarding the fit and it worked well for my ‘23 Subaru Forester. I may go back to an OEM filter next time but it’s nice to know that this one will work for me.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 30, 2026

Verified Purchase

John Appleseed

Lake Worth, US

★★★★★ 5

Fits as advertised

Good item

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 11, 2026

Verified Purchase

Just Joe