Weldon Racing -10AN/-8AN Bypass FPR with Fluorosilicone Diaphragm COBB Bolts are not included as

Bolts are not included as you can reuse your existing factory hardware

For example

CNC machined 1/2" mild steel

Digressive piston technology allows for stiff low-speed compression/rebound force

Weldon Racing -10AN/-8AN Bypass FPR with Fluorosilicone Diaphragm COBB Bolts are not included asFits these Applications: Universal Product Description: The A2040 Weldon Racing Bypass Fuel Pressure Regulators are for use with fuel injected applications running non oxygenated fuels and available in two options: 30 to 110 psi base pressure or 90 to 200 psi base pressure. Fuel pressure increases on a 1: 1 ratio with boost and features two 10AN pressure ports and one 8AN return port. Don't sacrifice your winning run due to unpredictable fuel