Milltek Audi A4 (B9) Large Bore Downpipe with Catalyst Delete

Milltek Audi A4 (B9) Large Bore Downpipe with Catalyst Delete

Marsoni

M251S

$194.50

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

Milltek Audi A4 (B9) Large Bore Downpipe with Catalyst DeleteMilltek Sport Large Bore Downpipes are perfect when looking to improve both performance and sound. These downpipes are fabricated with a larger diameter than standard OEM parts, meaning that there is significantly more space for more gas to exit the engine and pass through, increasing efficiency. Used with our Catalyst Bypass Pipe, you can expect significant power gain without any restriction on gas flow made by a catalyst. This product is intended

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Reviewed in the United States on April 22, 2026