Texas Speed LS1 Cylinder Head Upgrade - Big Power, Small Change - Part 1
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The torque arm is pulled down on the passenger side and the Y-pipe is simultaneously tapped backward until it separates from the headers. In this case, the header to Y-pipe junction was so tight that the Y-pipe was separated after the test tube. The Y-pipe is then twisted and wiggled loose from the junction to the after-cat and removed. View Related Article
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