The CTS Turbo High-Flow Cat for the BMW B58 is made to maximize exhaust flow for the 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 with high-flow 200cell catalytic converter
Great power upgrade with uncompromising performance
Incredible sporty exhaust sound, subtle when cruising
No drone with factory exhaust
 
We recommend replacing the downpipe gasket when installing, factory BMW gasket 18328612538 is required (not included).
Catalytic converters damaged by “crackle tune” are not covered under warranty.
2016+ F20 BMW M140i
2016+ F22 BMW M240i & M240i xDrive
2016+ F30/F31/G20 BMW 340i & 340i xDrive
2016+ F32/F33/F36/G22/G23/G26 BMW 440i & 440i xDrive
2016+ G30/G31 BMW 540i & 540i xDrive
2016+ G11/G12 BMW 740i & 740i xDrive
2018+ G01 BMW X3 M40i xDrive
2018+ G01 BMW X4 M40i xDrive
2019+ G01 BMW X5 40i xDrive
 
Stage 2 software is required to avoid check engine light. Only fits cars without GPF/OPF.