Schoenfeld - 1.625 to 1.75 in Primary - 3 in Collector - Small Block Chevy (Pair) 1101V-3 NGK 2 port regulators feature a

2 port regulators feature a 10 AN O-ring inlet/outlet and return

Excellent mid-range torque

2005-2009 Toyota 4Runner

1-3/4 in Hose Barb Outlet

trouble free installation

Schoenfeld - 1.625 to 1.75 in Primary - 3 in Collector - Small Block Chevy (Pair) 1101V-3 NGK 2 port regulators feature aSchoenfeld Headers 1. 625 to 1. 75 in Primary 3 in Collector Small Block Chevy (Pair) Product Description: Headers 1. 625 to 1. 75 in Primary 3 in Collector Gaskets Hardware Included Steel Black Paint Small Block Chevy Pair Founded in 1974, Schoenfeld Headers is the largest circle track header manufacturer in the world. Schoenfeld Headers is the manufacturer of competition headers, mufflers and exhaust systems. Schoenfeld Headers listen to their