SKU: 34768022318

CTS TURBO BMW F90 S63 M5/M5C & BMW F91/92/93/ M8 HIGH-FLOW CATS DOWNPIPE SET

Sale price$468.43 Regular price$520.48
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Shipping Estimate
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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Description

CTS TURBO BMW F90 S63 M5/M5C & BMW F91/92/93/ M8 HIGH-FLOW CATS DOWNPIPE SETCTS Turbo F90 M5 M5C & F91 92 93 M8 High Flow Cats are made to maximize exhaust flow for highest power gains. Do not compromise performance and sound with factory parts. Designed using the latest in CAD technology; this part is made to fit perfectly in place of restrictive factory catalytic converter. Manufactured from CAST T304 stainless steel; hand TIG welded and back purged to ensure years of reliable performance. In addition to unleashing the

CTS Turbo F90 M5/M5C & F91/92/93/ M8 High-Flow Cats are made to maximize exhaust flow for highest power gains. Do not compromise performance and sound with factory parts.

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

In addition to unleashing the power and performance of your 4.4 Twin Turbo, our High-Flow Cats will make your vehicle sound like it really should. When installed with factory exhaust it produces a louder and deeper growl with much more pronounced exhaust “crackle” on downshift. While up-shifting you will enjoy a confident “punch!” as you bang through all 8 gears. The sound will be even louder if you already have an aftermarket exhaust system.

Product Details:

  • 80mm or 3.15″ diameter piping
  • Cat size: 110mm OD x 90mm Long or 4.33″ OD x 3.54″ Long
  • Includes 200 cell sport catalytic converter
  • Designed and tested on a real car in the real world
  • Cast T304 stainless steel, TIG welded back-purged construction
  • Replaces restrictive factory catalytic converter
  • Great power upgrade with uncompromising performance
  • Incredible sporty exhaust sound, subtle when cruising
  • No drone with factory exhaust

Fitment:

  • 2018-2021 F90 BMW M5
  • 2018-2021 F90 BMW M5 Competition
  • 2020-2021 F91/92/93 M8

 

To remove the CEL that will occur, proper stage 2 tuning software must be used.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 34768022318

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4.5 ★★★★★
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Melissa P
Lowell, US
★★★★★ 3
Not as tall as anticipated
Color: Black, Size: Wheel-6 Panel
Definitely not 6 feet tall, more like 5 1/2. Very sturdy and the fabric is thick. Works well for what we're using it for.
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Reviewed in the United States on November 30, 2025
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Vickie Dovel
Dallas, US
★★★★★ 5
Easy to put together
Color: Grey, Size: Wheel-6 Panel
Love them
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Reviewed in the United States on December 17, 2025
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Nicole
Charlottesville, US
★★★★★ 5
Perfect Divider!
Size: 102''Wide-3 Panel, Color: Beige
This is perfect! Exactly what I was looking for, for my office. Set up was easy and very sturdy. Looks nice
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Reviewed in the United States on May 27, 2026
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angela
Pawtucket, US
★★★★★ 5
Does what expected
Size: 132‘’Wide-6 Panel, Color: Black
Did exactly what we needed. Not terribly sturdy so don’t expect a lot
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Reviewed in the United States on April 27, 2026
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Gabby
New York, US
★★★★★ 5
Very pleased with this purchase
Size: 88‘’Wide-4 Panel, Color: Grey
This is very easy to assemble, light weight, and does exactly what it is supposed to. I thought it would be a little bit taller, but it gets the job done.
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Reviewed in the United States on April 18, 2026

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