Audi S4 B9 / S5 F5 3.0 TFSI OPF Catless Downpipe (2020+)
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High-Flow Catless Downpipe for Audi S4 B9 & S5 F5 3.0 TFSI Turbo V6 OPF Models
Designed for the Audi S4 B9 and Audi S5 F5 powered by the EA839 3.0 TFSI turbocharged V6 and equipped with OPF / GPF, this high-flow catless downpipe replaces the restrictive factory catalytic converter section with a significantly freer-flowing exhaust path directly after the turbocharger.
Manufactured from high-quality stainless steel, the downpipe is engineered to withstand extreme exhaust temperatures while providing excellent strength, corrosion resistance and long-term durability.
The catless configuration removes the restrictive factory catalytic converter, significantly reducing post-turbo exhaust restriction and allowing exhaust gases to flow more efficiently. This results in increased turbocharger sound together with a deeper, louder and more aggressive 3.0 TFSI V6 exhaust note.
The freer-flowing design is particularly suited to tuned and performance-oriented EA839 3.0 TFSI builds where reduced exhaust restriction and improved turbocharger response are a priority.
Vehicle-specific routing, flange geometry and sensor locations are designed around the factory Audi S4 / S5 3.0 TFSI exhaust system. Original sensors and applicable OEM components should be transferred during installation where required. Professional installation is strongly recommended.
KEY FEATURES:
- High-quality stainless steel construction
- High-flow catless downpipe design
- Designed for the EA839 3.0 TFSI turbocharged V6
- Designed for OPF / GPF-equipped vehicles
- Removes restrictive factory catalytic converter
- Reduced post-turbo exhaust restriction
- Improved exhaust gas flow
- Improved turbocharger response
- Increased turbocharger sound
- Deeper and more aggressive V6 exhaust tone
- Vehicle-specific exhaust routing
- High-temperature resistant construction
- Excellent corrosion resistance
- Professional installation strongly recommended
PACKAGE INCLUDES:
- 1 × Catless Downpipe
- Installation Hardware
OPF / GPF FITMENT GUIDE:
OPF / GPF is most commonly found on European-market petrol vehicles. Many U.S. and Canadian-spec vehicles are supplied without OPF / GPF, even when the model and year are similar.
This downpipe is specifically designed for OPF / GPF-equipped vehicles. If you are unsure which version your car has, we recommend confirming the emissions configuration by VIN or checking the factory exhaust system before ordering.
IMPORTANT NOTICE:
This product is intended for off-road, track and motorsport use only. Removal of the factory catalytic converter may not comply with emissions or public road-use regulations in your country or region.
Installation of a catless downpipe may trigger a Check Engine Light (CEL). Appropriate ECU software or calibration may be required depending on the vehicle setup.
It is the customer’s responsibility to confirm all applicable local emissions, inspection and road-use regulations before purchasing or installing this product.