Process West Anti-Surge Fuel System w/Single Walbro 460 for Subaru WRX/STI 08-14 AUDI_A5_B9 ✓ One-way check valve prevents

✓ One-way check valve prevents boost pressure backflow

with their own cars

Stainless steel M8x1

✓ Petcock drain valve for convenient servicing

and other high-performance applications

Process West Anti-Surge Fuel System w/Single Walbro 460 for Subaru WRX/STI 08-14 AUDI_A5_B9 ✓ One-way check valve preventsProduct Description Our new fuel anti surge system is the ultimate in fuel delivery for your G3 WRX or STi. In early 2008 Process West released a true plug and play anti surge system for the MY97 to MY07 WRX STi. We sold many 100s of these units in the last 4 years. The original system was based on a hand fabricated surge vessel with an externally mounted Bosch Motorsports 044 pump. Now in October of 2013 we have raised the bar. It was time to