Sale
CTS Turbo B8/B8.5 Audi A4/A5/AllRoad/Q5 1.8T/2.0T High Flow Catalytic Converter
or as low as $22.50/mo with Affirm
Description
CTS Turbo B8/B8.5 Audi 1.8T/2.0T High Flow Cat is the premier high flow cat pipe for your Audi A4/A5/Allroad or Q5.
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Our B8/B8.5 High Flow Cat is designed to seamlessly fit in place of your restrictive stock catalytic converter, which is situated immediately after the turbocharger. Our B8/B8.5 High Flow Cat features 3″ stainless steel piping, smooth mandrel bends, two 02 sensor bungs with an option for a third. Substantial power gains, improved exhaust flow and a more throaty sound are the main benefits of installing our B8/B8.5 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 B8/B8.5 High Flow Cat. In addition to being one of the best bang for the buck performance upgrades for A4/A5 owners, our cat pipe is also a very attractive piece. Each 3″ B8/B8.5 High Flow Cat is mandrel-bent, hand tig welded. Do you need an additional 02 bung for data logging? Well, that’s no problem! Extra 02 bung is now included at no extra charge.
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Product Details:
– 3″ high-flow cat
n– T304 stainless steel construction
n– 200 cell stainless steel high flow cat
n– Mandrel-bent stainless steel
n– Fully tig welded design
n– Extra O2 bung for wide-band installation
n– Install hardware included
n– Great power upgrade
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To remove the CEL that will occur, proper tuning software must be used. CTS Turbo recommends choosing a High Flow Cat for the sake of our environment!
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Use of stage 2 software upgrade is strongly recommended.
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Fitment for factory turbo, CTS-TR-1070, CTS-TR-1070X and CTS B8 BOSS kits.
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Fitment:
- 2009 – 2016 Audi A4 2.0T
- 2009 – 2016 Audi A5 2.0T
- 2009 – 2016 Audi AllRoad 2.0T
- 2009 – 2017 Audi Q5 2.0T
- 1.8TFSI EA888 Gen 1 and 2.0TFSI EA888 Gen 2 ONLY!
- Does not fit late ROW cars with EA888 Gen 3 engine.
- Only fits LHD vehicles. Fits manual and automatic transmissions, does not fit CVT.
FREQUENTLY ASKED QUESTIONS
You'll get an instant confirmation email with your part details and invoice. We source from a network of authorized suppliers across the country, so lead times vary by brand and part type — we'll send a tracking number the moment your parts move.
Made-to-order builds — carbon fiber bodywork, fabricated systems, custom finish work — run longer than off-the-shelf items because they're built per order. You'll get progress updates throughout the build.
Need a specific timeline on a part before you buy? Call 805-267-9762 or hit the chat — we'll check vendor stock direct and give you a straight answer.
Absolutely! Once your order ships, you'll get an email with a tracking link so you can follow its journey from our shop to your doorstep.
If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.
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