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Charts & Guides for Part Number SUM-670164
Summit Racing™ Header Extensions
Header Collector Extensions, 3-Bolt, 3.50 in. Diameter, 12.0 in. Length, Gaskets, Fasteners, Pair
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Estimated Ship Date: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SUM-670164
Part Type:
Product Line:
Summit Racing Part Number:
SUM-670164
UPC:
190861032750
Collector Diameter (in.):
3.50
Pipe Diameter (in.):
3.500 in.
Collector Attachment:
3-bolt flange
Header Extension Length (in.):
12.00
Oxygen Sensor Bung Included:
No
Turnout:
No
Quantity:
Sold as a pair.
Summit Racing™ Header Extensions
Extend your performance with Summit Racing™ header extensions. Crafted from aluminized steel, our collector extensions are available in bolt-on and slip-on styles to fit your application in your quest for more torque and power. Summit Racing™ header extensions include clamps and hardware for your install. Tune up your car's torque without throwing a wrench into your budget--add Summit Racing™ header extensions to your ride.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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