...HPA also removes the turbo muffler to accommodate a specialized CNC-machined fitting, allowing the outlet pipe of the turbo to be rotated to clear the block. This increases airflow exiting the turbo. A laser-cut block off plate for the OEM S3 PCV system is included with all K04 kits as this port is not required on a TSI motor...
The HPA Downpipes optimize back pressure and allow our calibrators the headroom to maximize both power and torque.
HPA street downpipes come standard with our 100C high flow cats, the same cats used on all HPA twin turbo vehicles.
- Factory 02 sensor placement
- Bolts to factory locations, with adapter step down included for factory rear muffler section
- Substantial weight savings
A race (catless) version of this downpipe is also available upon request.