Seller notes

Product Description Specifications: Fits most Small block engines from 265 to 400 cubic inches 1-5/8” primary tubes 3-1/2” collectors Fits standard or Vortec head Small Block Chevy (not D-port style heads) Will fit Angle plug heads. And are designed to run on the outside of the factory frame rails--2-Piece 4-1 Racing design(8-2-1) TIG welded CNC machine flange Increase high flow air, instantly gain 10 to 15 Hp. / Tq. Maximizing smoothest high air flow rate Direct Bolt-On Installation, Requir...

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