Fabspeed BMW B58N Sport Catalytic Converter Downpipe (2023+)

Fabspeed BMW B58N Sport Catalytic Converter Downpipe (2023+)

Marsoni

M251S

$1427.97

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

Fabspeed BMW B58N Sport Catalytic Converter Downpipe (2023+)SKU: BMW. B58N. SC Fabspeed BMW B58N Sport Catalytic Converter Downpipe (2023+) Upgrade your BMW with the Fabspeed B58N Sport Catalytic Converter Downpipe featuring German HJS 200 cell EURO 6 compliant trimetallic cats. This direct bolt on replacement for OEM 18325A04CB2 fits all 2023+ B58N models including X5 X6 X7 40i worldwide. Gain more exhaust flow power and sportier sound across the RPM range without triggering a check engine light. Key Features

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I used this to change the oil on my BMW M8 with the S63 engine. It was a perfect fit. It extended far enough onto the filter housing to be quite secure with no risk of slipping off and stripping the housing. It was snug on the housing and did not bind up due to having a loose fit. The tool feels well-built and I suspect it will outlive me given my occasional personal use. It would still probably hold up well even for daily shop use as long as it was not abused (repeatedly dropped, slammed around, etc).

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Reviewed in the United States on September 8, 2025

Verified Purchase

Chad altenbach

Massapequa, US

★★★★★ 5

Made well and great fit

Fits perfectly and is made well

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Reviewed in the United States on May 8, 2026

Verified Purchase

Dalia Toppin