Header Extensions - 3-bolt flange Collector Attachment - 12.00 Header Extension Length (in.) - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Summit Racing™ Header Extensions SUM-670162

Header Collector Extensions, 3-Bolt, 3.00 in. Diameter, 12.0 in. Length, Gaskets, Fasteners, Pair

Part Number: SUM-670162

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 3/9/2026 if shipped by air

Header Collector Extensions, 3-Bolt, 3.50 in. Diameter, 12.0 in. Length, Gaskets, Fasteners, Pair

Part Number: SUM-670164

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 3/9/2026 if shipped by air

Header Extension, Afterburner Thrust Toobs, Bolt-On, 3 Bolt, 3.00 in. Inlet/Outlet, 12.00 in. Length, Pair

Part Number: BIG-10511FLT

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 3/9/2026 if shipped by air

Header Collector Extensions, 3-Bolt, 2.50 in. Diameter, 12.0 in. Length, Gaskets, Fasteners, Pair

Part Number: SUM-670160

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 3/9/2026 if shipped by air