HRM N55 head port plug kit 5inch starting at 89 degrees and

starting at 89 degrees and ending at 86 degrees

Connects from fuel tank(drive side) to the HPFP

creating a finely tuned suspension system

Each shock is tuned with a progressive rate spring that is engineered from its inception to work with the shock’s valving

while newer models such as the Audi S3 (8P) can be lowered between 10-40mm due to being much lower from the factory

HRM N55 head port plug kit 5inch starting at 89 degrees andHave a higher boost N55? Our head port plug kit prevents boost pressure from entering the valve cover on the n55 where boost leaks can present themselves at the valve cover or internal diaphragm. *an aftermarket pcv system breather cap is recommended *professional installation is recommended. *intended for off road use only.