Performance - Audi A4 B9

REVO INTERCOOLER The Revo Intercooler utilises unique design features to lower intake air temperatures, minimise pressure drop and allow the engine to produce impressive power and torque with Revo Software. The unique end tank profile promotes internal laminar flow by decreasing turbulence and increasing airspeed into the bar and plate core. This enhances charge air cooling giving you access to more power throughout the rev range. The limitations of the stock intercooler were apparent throughout testing. The stock part consistently struggled to manage charge air temperatures, even under normal driving conditions. The Revo Intercooler has been designed to improve on the stock part in every area. Restrictive elements of the stock cooler have been enhanced and cooling efficiency has greatly improved by utilising four different fin types throughout the core, increasing core volume by 90% and overall surface area by an impressive 140%. KEY FEATURES Unique Core design with 4 fin types Fully Cast End Tanks 140% Increase in Surface area Up to 90% Increased Core Volume KIT CONTENTS Revo Intercooler Revo Fitting Kit INCREASED CORE VOLUME The Revo Intercooler was built around a simple principle; create a cooler that can keep up with your demand for power. Designed from the ground up, the Revo Intercooler has much larger core volume than the OEM part and offers perfect fitment, improving cooling by utilising the full volume of the available space as well as cold ambient air from the front of the vehicle. BAR AND PLATE CORE Designed with a bar and plate core to maximise the efficiency of heat transfer, pressure drop is also controlled as the air meets less resistance compared to that of a tube and fin alternative. The Revo Intercooler also features carefully specified fin geometry to maximise cooling properties while minimising flow restriction. FIN DESIGN The new bar and plate core design now utilises a four-fin configuration designed to control charge and ambient air separately. This unique fin design significantly increases cooling capacity by up to 25% over a two-fin configuration. The ambient core side utilises louvred fins to slow ambient air flow to improve heat transfer, while the charge core side features an offset internal fin design to balance surface area and air resistance, minimising pressure drop. END TANK DESIGN The Revo end tank geometry maintains the largest possible cross-sectional flow area to and from the core. Coupled with a cast interior surface finish, the Revo end tanks allow air to flow freely without restriction. End tanks play an important part in maintaining pressure and work in harmony with the core to promote airflow, the Revo end tanks are designed to offer the optimal balance of both key features. BRACKETS To ensure precision fitment, only Revo offers precision laser cut upper and lower brackets to fit integrated mounting points cast in to the intercooler. As the cooler has a much larger surface area, the upper brackets are essential to prevent any rotating movement.     RESEARCH AND DEVELOPMENT  The Revo intercooler minimises turbulence while maximising heat transfer, promotes cooler air temperatures and minimises pressure drop. This helps retain power and torque throughout of the rev range as highlighted during controlled Dyno testing. The Revo Intercooler was tested in-house to compare the performance against that of the stock Intercooler. First tested on a vehicle running the OEM Intercooler with Revo Stage 2 software, a stock intake system, Revo intercooler pipes and a prototype Revo downpipe, the Revo Intercooler was then installed and tested in the same controlled environment to highlight the benefits of enhanced cooling. PERFORMANCE  Three back-to-back runs were performed to gauge the various metrics of both intercoolers, as well as to see how both intercoolers responded to heat soak. With max gains of +56 HP & +60NM Torque, along with increased performance throughout the entire rev range. The stock intercooler struggles to effectively function in comparison to the Revo Intercooler which remained consistent throughout the 3 runs, compared to stock cooler which lost 5%.   INLET TEMPERATURE Inlet temperature readings are used to monitor the temperature of air going in to the intercooler. This ensures controlled testing when comparing results of outlet temperatures. As highlighted in the graphs, the inlet temperatures during the Revo Intercooler test were higher than in the test of the stock cooler, the Revo intercooler was still able to lower outlet temperatures more than the OEM part. OUTLET TEMPERETURE This graph illustrates the increased cooling performance of the Revo intercooler vs OEM intercooler over all three runs. The Revo Intercooler keeps temperatures below 45ºC on all runs compared to 90 ºC with the stock cooler. The maximum difference in temperatures was a huge 61 ºC.   FITTING   Manufacturer Model Engine Variant Year Audi A4 2.0TFSI B9 2015> Audi A5 2.0TFSI B9 2015>   DOCUMENTS The following documents are available to view: FITTING INSTRUCTIONS Download the Revo Audi B9 2.0 TFSI Intercooler Instructions

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REVO OEM+ INTAKE SYSTEM Get impressive performance benefits without compromising on the factory look of your engine bay. Revo OEM+ Air Intake Systems utilise the existing airbox, replacing any restrictive components with parts precisely engineered to reduce turbulence and improve airflow. The B9 Audi A4 shares the same airbox as the higher powered S4 and RS4 models and performed well during initial testing of volume and flow. This air intake system upgrade includes a Revo foam filter and a flush-fit silicone hose to minimise air restriction and turbulence, improving airflow and giving you access to more power. KEY FEATURES Increased Airflow by up to 20% Three-layer foam filter Stepped Silicone Hose +11Hp and 13NM performance gains KIT CONTENTS Revo ProPanel Filter Revo Silicone Hose Revo Takeoff Stainless Steel Clamps AIRFILTER The standard paper filter found in most vehicles performs well under normal conditions, however, with the increased power it becomes a major choking point in the system. Revo filters work by trapping dirt particles within each of the oiled foam layers while allowing air to negotiate its way through, reducing restriction and offering much longer service intervals. The new Revo filter features an OEM top plate, allowing a direct fit replacement for the stock airbox. SILICONE HOSE The plastic hose on the stock system is designed with a corrugated style to flex with the engine movement, while this has its place it also causes a large amount of turbulence as the airflow doesn’t have a smooth direct path to the turbo. We designed the silicone hose with stepped internals to ensure a flush fit, and to minimise turbulence while still allowing for engine movement. SELF-SEAL TAKEOFF The OE B9 A4/A5 intake hose has a small vacuum take-off used to supply vacuum to various components of the engine. To replicate this, the Revo B9 A4/A5 intake hose utilizes a threaded self-seal barb. This machined configuration offers a better aesthetic and more durability than typical plastic and glued couplers.   PERFORMANCE  Testing was carried out with consistent conditions on both the OEM intake and the Revo OEM+ Intake System on a 2017 Audi A4 B9 2.0 TFSI Quattro (252ps) running Revo Performance ECU Software and hardware. While dyno testing for performance gains, VCDS software was used to log airflow with a full AEM logging suit used to monitor temperatures. The Revo Intake increased vehicle performance, especially higher in the rev range, highlighting the performance benefits over the stock components.   AIRFLOW Testing of the stock unit back to back against the Revo OEM+ kit on a full flow bench was carried out to highlight the largest restrictions in the system. The Revo OEM+ Intake system had far less restriction than the OE unit, at 480CFM the stock unit was seeing 619mmwg restriction while the Revo unit only saw 530mmwg some 14% less restrictive. At low flow rate the Revo intake provided up to 20% less restriction, improving throttle response. The graph below shows the flow test and comparison between the OE and Revo intakes.   FITMENT   Manufacturer Model Engine Variant Year Audi A4 2.0TFSI B9 252PS 2015> Audi A5 2.0TFSI B9 252PS 2015> Audi Q5 2.0TFSI B9 252PS 2015> *Note: Plastic airbox lid not included in the kit.   DOCUMENTS The following documents are available to view: FITTING INSTRUCTIONS Download the Revo Audi B9 2.0 TFSI Intake Instructions  

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REVO OEM+ INTAKE SYSTEM Get impressive performance benefits without compromising on the factory look of your engine bay. Revo OEM+ Air Intake Systems utilise the existing airbox, replacing any restrictive components with parts precisely engineered to reduce turbulence and improve airflow. The B9 Audi A4/S5 shares the same airbox as the higher-powered S4/5 and RS4/5 models and performed well during initial testing of volume and flow, however, there was room for improvement. This air intake system upgrade includes a Revo foam filter and a flush-fit silicone hose to minimise air restriction and turbulence, improving airflow and giving you access to more power. KEY FEATURES Increased Airflow by up to 15% Three-layer foam filter Stepped Silicone Hose KIT CONTENTS Revo ProPanel Filter Revo Silicone Hose Revo Takeoff Stainless Steel Clamps AIR FILTER The standard paper filter found in most vehicles performs well under normal conditions, however, with increased power it becomes a major choking point in the system. Revo filters work by trapping dirt particles within each of the oiled foam layers while allowing air to negotiate its way through, reducing restriction and offering much longer service intervals. The new Revo filter features an OEM top plate, allowing a direct fit replacement for the stock airbox. SILICONE HOSE The plastic hose on the stock system is designed with a corrugated style to flex with the engine movement, while this has its place it also causes a large amount of turbulence as the airflow doesn’t have a smooth direct path to the turbo. We designed the silicone hose with stepped internals to ensure a flush fit, and to minimise turbulence while still allowing for engine movement. SELF-SEAL TAKEOFF The OE B9 A4/A5 intake hose has a small vacuum take-off used to supply vacuum to various components of the engine. To replicate this, the Revo B9 A4/A5 intake hose utilizes a threaded self-seal barb. This machined configuration offers a better aesthetic and more durability than typical plastic and glued couplers.   AIRFLOW Testing of the stock unit back to back against the Revo OEM+ kit on a full flow bench was carried out to highlight the largest restrictions in the system. The Revo OEM+ Intake system had far less restriction than the OE unit, at 600CFM the stock unit was seeing 986mmwg restriction while the Revo unit only saw 843mmwg some 14.6% less restriction. At low flow rate, the Revo intake provided up to 15% less restriction, improving throttle response. The graph below shows the flow test and comparison between the OE and Revo intakes.   FITMENT   Manufacturer Model Engine Variant Year Audi A4 2.0TFSI B9 190PS 2015> Audi A5 2.0TFSI B9 190PS 2015>   Notes: Simple replacement of the OEM part Plastic airbox lid not included in the kit Please contact your local Revo Authorised Dealer for additional information and availability.

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