APR Intake System 3.0T Audi S4 (B9) / S5 (B9)

The APR Full Intake System is the ideal solution for Audi enthusiasts seeking the best possible intake upgrade. Unlike many other systems that only improve part of the airflow path and are forced to narrow to the factory diameter for compatibility, this system replaces absolutely all components – from the inlet scoop to the turbocharger inlet.

This eliminates restrictions throughout the entire system and provides maximum airflow and optimal turbo performance, using the largest possible inlet that can physically fit.

The key to superior performance lies in the optimized design. The goal is for the inlet to be as large as possible, but the available space is extremely limited. By utilizing thin-walled heat-resistant composite materials, APR manages to maximize the internal diameter and achieve 31% more airflow compared to the standard system.

This directly leads to:

• higher turbocharger efficiency

• faster spool

• a noticeable increase in power

In combination with APR Stage 1 (93) software, the system adds:

• +19 AWHP

• +20 AWFT-LBS

The APR Full Intake System is designed not only with performance in mind but also functionality and sound. The PEX airbox isolates the filter from engine bay heat, and carefully positioned openings provide additional airflow and a refined, sporty sound.

The system also includes a massive 7” x 7” washable pleated cotton gauze filter, offering a large filtering surface and long-lasting use.

Whether your goal is more power, better turbo performance, or preparation for future upgrades, the APR Full Intake System is the only intake you will ever need.

Key Features:

• Complete system replacement – includes inlet scoop, airbox, filter, and turbo inlet pipe

• +19 AWHP and +20 AWFT-LBS in combination with APR Stage 1 (93)

• 31% more airflow – from 400 CFM (OEM) to 525 CFM

• Improved turbo efficiency through lower pressure drop

• High-temperature composite turbo inlet for maximum internal diameter and flow

• PEX airbox with heat-shield design and additional airflow paths in cooler areas

• Massive washable filter 7” x 7” pleated cotton gauze, with 5.5” front inlet and 4” outlet

• Future-proof design – billet turbo inlet adapter allows easy upgrade to larger turbos

• Complete kit with OEM gaskets, clamps, and hardware for easy bolt-on installation

• Emissions-friendly – no software required and compatible with emissions regulations

• Improved engine sound – sporty and clean, without being overly intrusive

An ideal choice for customers who want maximum flow, faster spool, real power gains, and a system ready for future power upgrades.