Audi RS4 Performance Air Intake - APR - PEX - `18-`25
Audi RS4 Performance Air Intake - APR - PEX - `18-`25
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Audi RS4 Performance Air Intake - APR PEX (2018–2025). This full intake system replaces the factory air path to increase airflow and improve efficiency on the 2.9T EA839.
Built as a complete solution, APR’s thin-wall, heat-resistant composite maximizes internal diameter from the inlet scoop to the turbo inlet, reducing restriction and pressure drop. The PEX airbox shields heat while thoughtfully placed openings feed cool air and a refined tone. Independent testing shows 36% more flow than stock (484 CFM to 658 CFM at 28 in H2O), improving turbo response; on an APR Stage 1 (93) RS5, the system added +19 AWHP and +17 AWFT-LBS.
Features
- Complete system: inlet scoop, PEX airbox, 7" x 7" washable cotton gauze filter, and turbo inlet
- High-temperature composite with maximized internal diameter
- Reduced pressure drop for quicker spool and improved efficiency
- Billet adapter compatible with larger turbo upgrades
- Emissions-friendly; no tuning required
- Includes gaskets, clamps, and hardware
- Fits B9 RS4 2.9T (2018–2025); also compatible with B9 RS5 2.9T
Questions or planning an install? Call us in Austin, TX at 512-982-9393 or in the Los Angeles, CA area at 562-981-6800. We offer installation and customization services at both locations.
Buying multiple items? Contact us for shipping discounts. We install on premises at both locations.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Need Assistance?
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Call us at 512-982-9393 (Austin, TX) or
562-981-6800 (Signal Hill, CA)
and get assistance from one of our sales team members!
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