CTS Turbo B9 Audi A4/A5/Allroad High Flow Cat Downpipe
SKU: 34056540330

CTS Turbo B9 Audi A4/A5/Allroad High Flow Cat Downpipe

Sale price$123.30 Regular price$137.00
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

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For Your Every Summer RSVP, with Code: SUMMER15

Description

CTS Turbo B9 Audi A4/A5/Allroad High Flow Cat DownpipeThe CTS B9 A4 A5 ALLROAD 1. 8T&2. 0T high flow cat is the premier high flow cat for your Audi A4 A5 ALLROAD 1. 8T & 2. 0T. Our high flow cat is designed to seamlessly fit in place of your restrictive stock catalytic converter, which is situated immediately after the turbocharger. We have redesigned our test pipe and high flow cat to both retain the same exterior shape and design for customers wanting to have a stealthy test pipe install. Our high flow

The CTS B9 A4/A5/ALLROAD 1.8T&2.0T high flow cat is the premier high flow cat for your Audi A4/A5/ALLROAD 1.8T & 2.0T. Our high flow cat is designed to seamlessly fit in place of your restrictive stock catalytic converter, which is situated immediately after the turbocharger. We have redesigned our test pipe and high flow cat to both retain the same exterior shape and design for customers wanting to have a stealthy test pipe install. Our high flow cat features 3″ stainless steel piping, one 02 sensor bung. Substantial power gains, improved exhaust flow and a more throaty sound are the main benefits from installing our high flow cat.  Upon inspection you will notice a flare which is nearly 4″, this flare then tapers to 3″ and is designed to allow for optimal flow as the exhaust gas transitions from the turbocharger to the high flow cat.  In addition to being one of the best bang for the buck performance upgrades for B9 owners our high flow cat is also very attractive piece.  Each 3″ test pipe is hand tig welded.

Product Details:
– T304 stainless steel construction
– Fully tig welded design
– Throaty sound
– Great power upgrade

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

Use of stage 2 software upgrade is strongly recommended.

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: 34056540330

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Melissa
Carnegie, US
★★★★★ 5
Must have for travel!
Color: B.Pink
Perfect size for travel and holds everything I need it to! So cute and I love it. Such a good buy
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Reviewed in the United States on May 5, 2026
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Amazon Customer
Omaha, US
★★★★★ 5
Quaiity and the perfect size!
Color: A.Beige
Item arrived very quickly and was as described. It is the perfect travel size or for the top of the dresser.
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Reviewed in the United States on May 6, 2026
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Cecily
Alexandria, US
★★★★★ 5
Smaller than it looks but worth it.
Color: A.Beige, Color: A.Beige
Cute and small. Definitely good for traveling.
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Reviewed in the United States on March 13, 2026
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Imani Jones
Dallas, US
★★★★★ 5
Nice & Spacious
Color: A.Beige
Perfect jewelry case for travel. It fit mostly everything that I needed . Would definitely recommend!
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Reviewed in the United States on May 4, 2026
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Krispy
Massapequa, US
★★★★★ 5
Good bang for buck
Nice and budget friendly valet tray, would buy again!
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Reviewed in the United States on January 19, 2026

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