Pipercross Airmax Carbon Fibre Intake Induction Kit For Audi RS6 RS7 C8 2019-
Product Details
Manufacturer Part Number: PK457Brand: Pipercross
Country/Region of Manufacture: United Kingdom
Model: Audi RS6 RS7 C8
Take your vehicle's performance to the next level with Pipercross Airmax Performance Induction Systems. Meticulously designed carbon induction systems are tailored to your specific vehicle, providing a bespoke solution for maximizing power, efficiency, and induction sound.
The Pipercross AirMax Intake System has been designed and engineered to directly replace the OEM Audi intake airbox lid, air filter and turbocharger inlet hoses on the C8 RS6/RS7 with the 4.0TT engine.
OEM Intake AssessmentThe OEM intake system on the Audi 4.0TT engine (found in the C8 RS6/RS7 vehicles) showcases a suite of performance-focused design queues that have come to be expected from Audi’s RS level vehicles. These design aspects allow the OE intake system to properly support the 4.0TT engine’s airflow requirements in almost all situations, when the engine is operating with OE engine tuning/software. Conversely, this same OE system begins to demonstrate shortcomings when aftermarket engine tuning packages are applied – particularly given the significant performance potential of the 4.0TT engine with aftermarket tuning (and the resulting drastic increase in engine airflow demands).
The OE intake filtration medium, airbox outlet sizes and upper airbox internal volume were all identified by the Pipercross engineering team as potential opportunities for intake airflow improvements. However, the lower OE airbox half (and subsequent panel filter shape/size) as well as the OE turbocharger inlets were found to be sufficient for the notably increased airflow targets; based on OE RS-tier performance design efforts, specific part size/functionality and Pipercross engineers’ experience with overall performance intake design across a multitude of engines/chassis.
Plus Panel FilterPipercross’ flagship panel filter; the Pipercross Plus, serves as the performance core of the C8 RS6/RS7 intake kit. This filter implements a hybrid, bespoke filtration foam stack-up to achieve the optimal balance between increased flow and air filtration. Additionally, the Plus filter range feature an industry-first, CNC-laser cut, 0.9mm thick aluminium backing frame that increases effective airflow 22.1% over typical steel mesh backing frames. The Plus filter was benchmarked against the OE pleated panel filter via airflow testing inside the complete OE intake system. During this testing, the Plus filter significantly outperformed the OE panel filter – reducing airflow restriction by an average of 38.66% (and a maximum of 47.47% at 200 CFM). As such, the Plus filter serves as the foundation around which the rest of the Pipercross AirMax kit is built, with all other intake components painstakingly designed to leverage this drastic increase in airflow performance.
Airbox LidThe Pipercross C8 RS6 AirMax Lid compliments the drastically increased airflow potential of the Plus panel filter. Utilising the latest 3D scanning and CAD technologies, the AirMax lid was thoughtfully designed to achieve more post-filter internal volume – maximising the available engine bay space below the bonnet without compromising OE fitment/clearance standards. Similarly, this same technology was employed to increase the outlet sizes of the lid, yielding a 61.39% increase in outlet internal cross-section vs. OE. Both geometric features were tied together utilising the latest CAD technology; integrating these features into the Pipercross part with flow-conducive geometry to aid in the formation of laminar intake flow and further increase flow throughput from within the AirMax system. All functional performance improvements are combined into a single carbon-fibre unit that adds a beautiful form-and-function aesthetic to any C8 RS6 engine bay.
Oultet HosesThe Pipercross RS6 AirMax outlet hoses supplement the performance advantages of the AirMax lid and Plus filter. In addition to accommodating the larger outlets, the Pipercross hoses also eliminate the flow-destabilising flex convolutions of the OE hoses (as well as some competitor hoses). These convolutions create large flow instabilities on the interior boundaries of the convolutions, resulting in a smaller effective cross-sectional internal area (and less air thru-flow, as such). Step-matched OE turbocharger inlet hose connections are also featured on the Pipercross hose, further stabilising internal airflow and maximising internal hose airflow area.
Details
The subtle details and ancillary parts of the Pipercross AirMax Intake Kit are what elevate it to the level of a premium product. The AirMax Lid features an integrated aluminium baseplate bonded to the carbon lid. This bonded plate ensures a consistent airtight seal to the panel filter. Aluminium structures are bonded into the AirMax lid outlets to ensure long-term structural integrity of the outlets to combat repeated mechanical/thermal load conditions. All stainless-steel hardware is provided with the AirMax kit (as well as aluminium flared mounting standoffs) to ensure corrosion, oil and other adverse engine bay environmental factors have no effect on the Pipercross kit’s function or aesthetic – no matter how hard the vehicle is driven.
Performance Testing DataBuilding upon the data gathered from Pipercross’ in-house airflow testing discussed above, the final configuration of the AirMax kit (utilising the Plus filter) was tested on an otherwise unmodified 2021 C8 Audi RS6 utilising a roller-based dynamometer inside a temperature-controlled environment, at an independent, third-party testing facility The vehicle was tested with both OE and aftermarket tuning applied, to gauge the performance effectiveness of the AirMax kit at different levels of vehicle modification. Three runs of each configuration were tested on the same day, within the same cell (six runs in total) and the vehicle was allowed to cool between testing sets.
The data graphed shows the average of three runs for each vehicle configuration tested. As demonstrated in these graphs, the AirMax kit provides meaningful performance benefits to a completely stock vehicle; but can significantly increase engine performance in conjunction with aftermarket engine tuning. Another performance benefit of the AirMax kit (not clearly demonstrated with the data graphed) is resistance to heat soak and resulting power loss.
When tested with OE tuning, both the OE and AirMax intake systems provided repeatable power figures across each of the three testing runs. Conversely, when aftermarket Stage 1 tuning was applied, the OE intake system consistently lost power on each testing run – indicating the OE intake is particularly vulnerable to the elevated engine bay temperatures of tuned vehicles, and the resulting power loss from exposure to those temperatures. However, the AirMax kit performed beautifully in these same conditions with the Stage 1 tuning applied, posting power and torque figures within +/- 3%, from the first to last dynamometer run. This can be attributed to the AirMax kit’s increased airflow capability/improved airflow dynamics (preventing internal air stagnation and subsequent heat soak) as well as the conductive heat resistance of the carbon fibre.
Features:
- Carbon fibre AirMax replacement intake airbox lid featuring 61.39% increase in outlet area
- Pipercross Plus premium, hybrid multi-density replacement high flow panel filter
- Step-matched, thick-walled silicone hoses, designed to maintain OE engine flexure and clearances
- High-tolerance, hard-anodized aluminium standoffs and carbon-bonded baseplate for long-term durability
- Flow tested to confirm 90.70% maximum, 81.35% average airflow restriction decrease vs. full OE intake system
- Power increase upto +14 - 39WHP & + 16 - 42Nm Trq gains (Stock to Stg1)
*AIRBOX BASE IS NOT INCLUDED
*Please note: The majority of Pipercross products are processed straight away, but occasionally some applications have to be special ordered which can take upto a maximum of 3-4 weeks for delivery. If there will be any delays in your order you will be informed within 24-48 hours.
*Image for illustration purposes only
IMPORTANT NOTE REGARDING - STOCK LEVELS
If you are in urgent need of this product or have any doubt of whether it is in stock due to low quantity, please contact us prior to placing your order to check for availability.
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Distributed By Haz Motorsport
Product Details
Brand: Pipercross
Manufacturer Part Number: PK457
Reference OE/OEM Number: Induction kit~PK457
Classic Car Part: No
Country/Region of Manufacture: United Kingdom
Grade: N/A
Mileage: N/A
Model: Audi RS6 RS7 C8
MPN: PK457
Performance Part: Yes
Vehicle Identification Number (VIN): N/A
Warranty Period: N/A
Other Part Number: PK457
