034Motorsport's X34 Cold Air Intake System delivers improved power, sound, and acceleration to B9 Audi S4/S5 owners in a clean OEM+ package.

Through extensive evaluation of the factory airbox design, 034Motorsport's engineers were able to create a performance replacement that allows for increased airflow to the turbocharger and engine. The X34 Air Intake System offers measurable performance improvements, simple bolt-on installation, and unsurpassed fit and finish.

NOTE: X34 Carbon Fiber Intake Air Duct sold separately.

Significant effort went into developing this comprehensive performance intake solution for the turbocharged 3.0 TFSI engine found in the latest generation B9 Audi S4/S5. Subsequently, the X34 Cold Air Intake System offers discerning enthusiasts measurable increases in horsepower and torque, sporty induction and turbocharger sounds, and a beautiful carbon fiber airbox and inlet pipe design.

Throughout the development process, multiple designs were modeled, prototyped, and tested - all to ensure that the X34 Cold Air Intake System delivers measurable performance benefits and superb fitment. The result is a partially-enclosed airbox which uses the factory fresh air inlet duct and heat shield, while housing a massive 5" inlet conical air filter, and a matching CFD-optimized carbon fiber filter tube.

Dyno-Proven Performance Gains

The X34 Carbon Fiber Cold Air Intake System for B9 Audi S4/S5 was engineered with performance in mind, and is a free-flowing replacement for the factory airbox and turbocharger inlet hose. As the development of this intake progressed, the X34 Cold Air Intake System yielded measurable reduction in pressure drop at the turbo inlet compared to the factory airbox, with a corresponding increase in horsepower and torque throughout the powerband.

Peak Horsepower and Torque

• Stock Intake: 401 Horsepower / 424 Foot-Pounds of Torque
• X34 Intake: 412 Horsepower / 425 Foot-Pounds of Torque

Peak Gains in Horsepower and Torque

• Peak Horsepower Gain: 19 HP @ 4,950 RPM
• Peak Torque Gain: 20 FT-LBS @ 4,950 RPM

Pressure Drop Reduction

• Stock Intake: Peak Pressure Drop of 2.22 PSI at 6,500 RPM
• X34 Intake: Peak Pressure Drop of 1.64 PSI at 6,500 RPM

Test Conditions: Dyno testing was performed on a stock 2018 Audi S4 3.0 TFSI using 91 octane fuel, piggyback, and 034Motorsport High Flow Cat.

What's Included

• X34 Carbon Fiber Air Box
• X34 Carbon Fiber Inlet Pipe
• X34 Silicone Hump Hose 2.75"
• 034Motorsport 5" Inlet Air Filter
• Authentic 034 X34 Hologram Decal
• Button-Head Cap Screws M5 x 0.8 x 25mm (x3)
• Nylon Locking Nuts M5 x 0.8 (x3)
• Worm Drive Hose Clamps M60x80 (x2)

Emissions Disclaimer: Not for use on emissions-controlled vehicles in California.