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CTS Turbo High-Flow Cats – B9 RS5



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The CTS Turbo B9 Audi RS5 High-flow CATS was designed to seamlessly fit in place of your restrictive stock catalytic converter, which is situated immediately after the turbocharger.

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

Substantial power gains, improved exhaust flow and a more throaty sound are the main benefits of installing our test pipe.

Product Details:

– T304 stainless steel construction
– Mandrel-bent stainless steel
– Fully tig welded design
– Install hardware included
– Throaty sound
– Great power upgrade

The CEL may occur, proper tuning software must be used.

The use of stage 2 software upgrade is strongly recommended.


2018+ B9 Audi RS5

Stage 2 software is required to avoid check engine light.




Weight 40 lbs
Dimensions 38 × 17 × 9 in

Audi RS5 B9 – 2018-2021 2.9T


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