BMW B58 Super 5″ Sports Cat Downpipe (F Series M140i, M240i, 340i & 440i)

Description

This is the largest BMW B58 sports cat downpipe on the market with a smooth transition to 5″

If you ever want a custom exhaust you can simply have the very end of the down pipe (3.3″) section swedge up to 3.5″ or simply just cut that 3.3″ section & you will be left with a 4″ Dia section.

Downpipe Specification

• Full Stainless Steel 304 Construction
• Stainless Steel Flex Joint
• Inner Stainless Liner for Durability & Longevity
• Deeper Exhaust Note
• Better Turbo Spool
• Improved Throttle Response

Compatibility

• BMW F20/F21 M140i (2016-2019)
• BMW F22/F23 M240i (2016-2021)
• BMW F30/F31 340i (2016-2019)
• BMW F32/F33 440i (2016-2020)