Over 200 degrees of bends removed for increased flow and 8-10 hp increase. Fits standard Chevy, Brodix spread port and now all pro spread port pattern heads. Laser cut flanges to clear down nozzles. Headers welded to clear 4" from head to inside tube. Approximately 32" 18-gauge primary tubes and 3-1/2" collectors. Comes with bolts and gaskets.
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