Audi Cold Air Intake System - Unitronic UH032INA

At Unitronic, development begins with setting the objectives for performance, efficiency, aesthetics and quality. Utilizing our very own development C8 RS 6, Unitronic Engineers eagerly started 3D scanning the EA825 engine bay which helps them interact with 3D models in order to identify fitment constraints, possible new mounting locations and other component locations to ensure the final product fits perfectly within the “envelope”.

In the case of the C8 RS 6 and RS 7, the team quickly found the limits of the OEM airbox especially in tuned vehicle applications. Its narrow profile and angular design left much to be desired not only from an aesthetic perspective but especially from a performance perspective. Unitronic Engineers carefully took all aspects into consideration and designed a complete intake system which maximizes airflow to alleviate pre-compressor airflow restrictions all within the compact frontal section of the C8 RS 6 and RS 7.

EFD studies suggested uniform air velocity and air pressure profiles across the air filter entering the inlets. The bottom of the air box features a sweeping divider to help distribute air flow across the area, as it provides the same amount of air flow to each turbocharger.

Corresponding airflow velocity cross sections of the airbox entry and turbo inlet entries show a uniform profile across the areas; this suggests an unbiased supply of air between turbochargers, facilitating equalized air flow to the turbocharger compressor wheels. Power delivery between cylinder banks should meet or exceed factory tolerances.

The aesthetics of the air box are derived from organic form that optimizes function. Its design allows induction to utilize the available volume to maximize performance. The two pronounced haunches featured in the top air box promote optimum airflow over the air filter's massive 400 square inch area.

Careful consideration was taken to minimize all aspects of turbulence that can occur during induction. Air flow separation causes this effect and thus, can potentially reduce the intake's efficiency. Pictured in the cut plot, there are no visible signs of air separation entering the cowl as it passes through the filter, across the coupler and into the inlet; suggesting laminar flow for maximum efficiency.

As the initial designs develop; evolution begins with rapid prototyping utilizing our in-house Stratasys 3D printer. Within hours, Unitronic Engineers are able to have a complete working printed prototype, allowing for test fitments to be performed on the vehicle. Special provisions were made to ensure this intake system was able to clear the lower hood release cables and carbon fiber winglets were incorporated at both ends of the airbox in order to secure the plastic light covers, just like the OEM airbox. With five different stunning finishes to choose from, Unitronic is confident you’ll find a Carbon Fiber Intake System to suit your personal taste.

PRODUCT FEATURES:

• +58hp/+55lb-ft tq dyno gains (using Stage 2 93 AKI ECU software)
• Autoclave construction
• Massive 74mm CNC-machined Billet Aluminum Turbo Inlets and Adapter Rings
• Modular adapter rings for stock (54mm) and TheTurboEngineers TTE1020 (60mm) turbochargers
• Proprietary high-flow pleated dry cotton panel filter with a massive 400 sq. in. surface area
• Smooth-flowing EPDM couplers
• High-quality stainless steel hose clamps
• Direct bolt-on fitment with OEM mounting locations
• Proven dyno power, torque, and flow bench airflow gains