They would. but I don't think you would feel any difference it would be so minute. I too have the same problem, I have to check my header bolts every other week and tighten them back up, soon I'm getting a set of Stage 8 Locking Header bolts, you should check them out. ~Brian
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1989 Black Mustang GT Hatchback, Underdrive Pulles, Electric Fan, Cold Air Intake, Headers, Offroad H-Pipe, Magnaflow catback, Steeda Tri-Ax, Fluidyne Aluminum Radiator, Timing at 14*, 3.73's
Coming not so soon: 408w
Ricer Hater's Club Member #59
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