Description
Gain the full potential and sound of Audi’s 3.0T Supercharged V6 with the Untd. Performance Catless Test-Pipe, designed to reduce exhaust restriction and improve overall exhaust flow on the Audi Q7 4M. By replacing the restrictive factory catalytic section with a free-flowing catless design, this upgrade allows exhaust gases to exit the engine more efficiently.
Ideal for enthusiasts looking for improved performance, sharper throttle response, and a more aggressive exhaust note, the Untd. Performance Catless Test-Pipe is an excellent upgrade for the 2016–2019 Audi Q7 4M equipped with the 3.0T Supercharged V6.
Key Features
Catless Design – Improved Exhaust Flow:
The Untd. Performance Catless Test-Pipe removes the restrictive factory catalytic section, allowing exhaust gases to flow more freely through the exhaust system. Reducing backpressure can improve exhaust evacuation and help the 3.0T engine operate more efficiently.
Improved Performance & Throttle Response:
With reduced exhaust restriction, the supercharged 3.0T V6 can benefit from improved exhaust flow and throttle response. When combined with ECU tuning and supporting modifications, the test-pipe can help unlock additional horsepower and torque.
Aggressive 3.0T Supercharged Sound:
The catless design enhances the character of the 3.0T V6, producing a deeper, louder, and more aggressive exhaust tone. The supercharged engine note becomes more pronounced during acceleration.
Stainless Steel Construction:
Manufactured from high-quality stainless steel for excellent durability and resistance to the extreme heat generated by the 3.0T Supercharged V6. Precision-welded construction provides reliable performance for both street-oriented builds and enthusiast applications.
Direct-Fit Design:
Engineered specifically for the Audi Q7 4M 3.0T Supercharged V6, providing a direct replacement for the factory test-pipe/catalytic section and designed to work with compatible OEM and aftermarket exhaust components.
Installation Hardware Included:
The test-pipe includes the necessary installation hardware, including replacement gaskets, bolts, and nuts where applicable, to help ensure proper fitment, sealing, and secure installation.
Tune Recommended / Required for Optimal Performance:
An ECU tune is strongly recommended and may be required when installing a catless test-pipe. Proper tuning can optimize the vehicle for the increased exhaust flow and allow the engine to take better advantage of the modification.
Estimated Performance Gain
Because this product replaces a restricted catalytic section rather than the complete exhaust system, gains from the test-pipe alone are generally modest on the factory calibration. The largest improvements are achieved when combined with ECU tuning and supporting 3.0T modifications.
product on public roads.
| Configuration | Estimated HP Gain | Estimated Torque Gain | Estimated Output |
|---|---|---|---|
| Stock Tune | ~2–5 HP | ~3–6 lb-ft | ~335–338 HP |
| Stage 1 Tune | ~70–80 HP | ~65–85 lb-ft | ~403–413 HP |
| Stage 2 + Test Pipe | ~80–120 HP+ | ~75–95 lb-ft | ~413–452 HP |
These are estimated test-pipe-specific gains, not the total horsepower increase produced by the corresponding ECU tune. Actual output will vary depending on ECU calibration, fuel quality, vehicle condition, pulley configuration, supporting modifications, and dyno methodology.
Performance estimates assume crank horsepower, 91–93 octane (95–98 RON) pump fuel, and a healthy factory supercharged 3.0T.
Important: On the supercharged EA837, Stage 2 configurations commonly incorporate additional modifications such as a smaller supercharger or crank pulley. The larger Stage 2 power increase is therefore not attributable to the test-pipe alone.
⚠️ Check Engine Light Warning
A Check Engine Light (CEL) may occur after installing this catless test-pipe due to the removal of the factory catalytic restriction and the resulting change in exhaust emissions readings.
A compatible ECU tune is recommended and may be required to properly calibrate the vehicle after installation and address catalyst-efficiency-related fault codes. Tune requirements can vary depending on model year, ECU software, emissions equipment, and existing modifications.
For optimal performance, drivability, and compatibility, professional ECU tuning is recommended.
Why Upgrade?
The factory catalytic section is designed primarily for emissions control and can create additional restriction within the exhaust system. Replacing it with the Untd. Performance Catless Test-Pipe allows exhaust gases to flow more freely, helping reduce restriction and improve the overall responsiveness of the vehicle.
For Q7 4M owners looking to improve the performance and sound of their 3.0T Supercharged V6, the catless test-pipe provides a strong supporting modification for a tuned setup. When paired with an appropriate ECU tune, pulley upgrades, and supporting hardware, it can complement a performance-focused build while giving the exhaust a significantly more aggressive character.
Compatibility
- Audi Q7 3.0 TFSI Supercharged EA837 Q7 4M – 2016–2019
Fitment may vary depending on model year, drivetrain, transmission, market, emissions equipment, and existing modifications. Please verify compatibility before ordering.
⚠️ Important Notice
CATLESS / OFF-ROAD USE ONLY: This product eliminates the factory catalytic equipment and may not be legal for use on public roads in your jurisdiction. Check your local emissions, inspection, and vehicle regulations before installation.
A Check Engine Light may occur without appropriate ECU calibration. A compatible tune may be required for proper operation and optimal performance.
Professional installation and ECU calibration are recommended.
Untd. Performance is not responsible for emissions compliance, inspection requirements, or the legality of installing or operating this product on public roads.
