The CTS Turbo Catless Downpipe BMW B58 is made to maximize exhaust flow for highest power gains. Do not compromise performance and sound with factory parts – unleash your BMW’s potential!

Designed using the latest in CAD technology; this part is made to fit perfectly in place of your factory downpipe. Manufactured from T304 stainless steel, hand TIG welded and back-purged to ensure years of reliable performance.

Product Details:

• Precisely designed and tested on a real car in the real world

• T304 stainless steel, TIG welded back-purged construction

• Replaces restrictive factory downpipe

• Great power upgrade with uncompromising performance

• Incredible sporty exhaust sound, subtle when cruising

• No drone with factory exhaust

To remove the CEL that will occur, proper tuning software must be used. CTS Turbo recommends choosing a High Flow Cat for the sake of our environment!

Use of stage 2 software upgrade is strongly recommended to avoid the CEL from coming on.

• 2016+ F22 BMW M240i & M240i xDrive

• 2016+ F30/F31 BMW 340i & 340i xDrive

• 2016+ F32/F33/F36 BMW 440i & 440i xDrive