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CTS Turbo 4.5 Race Downpipe for BMW B58 1/2/3/4/5/7 Series RWD & XDrive - All Generations

CTS Turbo 4.5 Race Downpipe for BMW B58 1/2/3/4/5/7 Series RWD & XDrive - All Generations

CTS TURBO
Availability:
in stock, ready to be shipped
SKU CTS-EXH-DP-0024
$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99
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We show live inventory for in-stock items. Products may sell out due to high demand but are restocked regularly. Out-of-stock items can still be ordered and usually arrive within a few weeks.

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:
  • 4.5" downpipe, reducing down to 3.15" or 80mm for perfect fitment to a factory or aftermarket exhaust
  • 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
We recommend replacing the downpipe gasket when installing, factory BMW gasket 18328612538 is required (not included).
  • 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+ G02 BMW X4 M40i xDrive
  • 2019+ G05 BMW X5 40i xDrive
Stage 2 software is required to avoid check engine light. Only fits cars without GPF/OPF.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 22 applications
440i xDrive
Make Model Engine Years
BMW 440i xDrive 2016–2019
BMW 440i xDrive (F32) 2016–2019
340i xDrive
Make Model Engine Years
BMW 340i xDrive 2016–2019
BMW 340i xDrive (F30) 2016–2019
440i
Make Model Engine Years
BMW 440i 2016–2019
BMW 440i (F32) 2016–2019
340i
Make Model Engine Years
BMW 340i 2016–2019
BMW 340i (F30) 2016–2019
M240i
Make Model Engine Years
BMW M240i 2016–2021
BMW M240i (F22) 2016–2021
M140i
Make Model Engine Years
BMW M140i 2016–2019
BMW M140i (F20) 2016–2019
540i
Make Model Engine Years
BMW 540i 2017–2019
BMW 540i (G30) 2017–2019
X3 M40i
Make Model Engine Years
BMW X3 M40i 2018–2022
BMW X3 M40i (G01) 2018–2022
X4 M40i
Make Model Engine Years
BMW X4 M40i 2018–2022
BMW X4 M40i (G02) 2018–2022
M340i
Make Model Engine Years
BMW M340i 2019–2022
BMW M340i (G20) 2019–2022
X5 40i
Make Model Engine Years
BMW X5 40i 2019–2022
BMW X5 40i (G05) 2019–2022

Fitment data last updated: 2026-06-26