Hallman Pro RX Manual Boost Controllers Variations:Hallman PRO RX Manual Boost Controller Red Invidia makes them from polished

Invidia makes them from polished T304 stainless steel tube for the Nissan 350Z and Infiniti G35 and welds on heavy duty flanges for perfect fitment

strip or autox/road race built car

Whether you already have a high performance radiator or are planning to purchase one

A Pair of mounts are included with each order

x engine designated models from Volkswagen and Audi

Hallman Pro RX Manual Boost Controllers Variations:Hallman PRO RX Manual Boost Controller Red Invidia makes them from polishedHallman's Pro RX kit is essentially the Pro kit with a ceramic ball instead of a steel ball. This allows for very specific boost control, and very fine adjustment for those only raising their boost a few pounds above stock. Boost can be adjusted consistently in 1 2lb increments with the Pro Rx. For those looking to add more than 5psi, the Pro RX also includes a stiffer spring. This kit has a ceramic ball instead of the 316 stainless ball that comes in