HKS 02-07 WRX/ 04-07 STi SSQV4 BOV Kit

Discover the HKS SQ4 Sequential BOV and experience the iconic sound that has made it a legend among blow-off valves. Its durable construction and rapid valve action efficiently release excess boost from your turbocharger. Perfect for those with mild to moderate upgrades.

DETAILS:

• Silver finish
  
• Pull-type sequential valve structure
  
• New differential pressure control system allows for stable operating ranges from low to high-boost pressures
  
• Works quickly to relieve excessive boost
  
• Perfect for those with mild to moderate upgrades
  
• Direct bolt on cast mounting flange
• Alternate fins available to adjust sound