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

Code: CTS-EXH-DP-0024
(3 customer reviews)


In Stock

Disclaimer * 

Included Warranty

12 Months
All CTS Turbo products are warrantied against manufacturing defects for a period of 12 months from the date of invoice. Warranty does not cover abuse, misuse, consequential damages, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective the customer will receive, at the discretion of CTS Turbo, free repair or replacement. Warranty on other manufacturers will be processed under their terms.


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+ 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.

Additional information

Weight 20 lbs
Dimensions 30 × 8 × 8 in

3 reviews for CTS Turbo 4.5″ Catless Downpipe for BMW B58 1/2/3/4/5/7 Series RWD & XDrive – All Generations

  1. Viren (verified owner)

    Went in a lot easier than the oem came out. Fits perfect. Nice tone paired with m exhaust and a muffler delete. CEL rarely comes on because my commute is pretty short. Smell in the cabin is barely present. Mostly after I floor it and then have to sit at a red light. Car installed on is an 18 540xi m package.

  2. Anthony P. (verified owner)

    I purchased this down pipe for my 2019 G05 x5 m40ixdrive. Fitment was spot on. Welds and quality were good. My only gripe is; I wish a gasket was included or add to the product description that it is not. Thanks for a quality product at a reasonable price point.

  3. Charles Haegerl (verified owner)

    Great fit and finish. I am currently running cts intake, charge pipe, and this catless down pipe. very good company and craftsmanship.

Add a review



Make Model Year Generation
Make Model Year Generation
BMW 340i 2016 - 2019 F30
BMW 440i 2016 - 2019 F32
BMW 540i 2017 - 2019 G30
BMW M140i 2016 - 2019 F20
BMW M240i 2016 - 2021 F22
BMW M340i 2019 - 2022 G20
BMW X3 M40i 2018 - 2022 G01
BMW X4 M40i 2018 - 2022 G02
BMW X5 40i 2019 - 2022 G05

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