This is the perfect intake upgrade for the Audi A4 and A5 (B9) with the 2.0T EA888 Gen 3 and Gen 4 engines. It flows 46% more than stock, reduces pressure drop, and improves turbocharger efficiency. This directly translates to more horsepower and torque making this a simple upgrade for more power you can feel, and does so at an incredible value.Our system is a full upgrade as it replaces all of the intake components from the inlet scoop all the way to the turbo inlet. Our system is made from PEX and looks great under the hood, matching the texture of other components. By using this material we are able to make the wall-thickness of the tubes small, maximizing the internal diameter, increasing performance even more! The material also allows us to make complex organic shapes necessary when working in a tight engine bay.The airbox is fed from an inlet scoop that maximizes the flow path into the airbox. The airbox has cutouts allowing for additional flow paths directed away from the engine. This keeps air temps down, and increases sound without it being overbearing. Furthermore we've incorporated at T304 stainless steel heatshield to keep hot engine bay heat from the turbocharger away from the airbox. The filter is massive as well. A big filter is desirable as increasing filtered surface area keeps the filter breathing easily for many miles as it filters dirt, dust, and particles. It measures 7" by 7" with a 5.5" frontal inlet, and a 4" outlet. The filter media is a washable pleated cotton gauze that can be cleaned for extended life, or replaced with ease.Our kit includes everything you need to bolt on and go. No new tuning is needed to run this product, and the product is emissions friendly. We include all new clamps needed for an easy install.. Please Note: This system does not fit vehicles with engines featuring a MAF sensor on the intake. Examples include the CVK/CVL/DBP/DEM/DKY/DLV/DLV/DRX engine codes and may include more. Excludes 2017+ Audi A4 2.0T with MAF on intake (DBPA / 188-190 HP) Excludes 2021+ Audi A4 Quattro 2.0T with MAF on intake (DMSA / 201 HP) Excludes 2021+ Audi A5 Sportback 2.0T with MAF on intake (DMSA / 201 HP). Inlet piping diameter is maximized from the 4” filter all the way to the turbocharger. Fits 2017-2018 Audi A4 - 2017-2024 Audi A4 Allroad/A5 Quattro/A5 Sportback. Massive 7” x 7” filter with a 4” outlet and 5.5” frontal inlet. Full intake system: Inlet, airbox, filter, and inlet piping. High flow and washable pleated cotton gauze filter material. Airbox has additional flow paths faced away from the engine. APR 17-25 Audi A4 Allroad B9 2.0T PEX Intake System. Reduced pressure drop at the turbo inlet. T304 stainless steel heatshield. Turbo operates more efficiently. OEM appearing PEX construction. Flows 46% more than stock. APR PEX Intake - B9 2.0T. B9 A4A5 INTAKE PLASTIC. Enhanced engine sound. Turbo spool faster. Emissions friendly. Incredible value. Intake

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