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Review on πŸ”’ Stage 8 8906 Locking Header Bolt Kit - 8mm Bolts for Ford 4.6 & 5.4L Modular Engine: Secure Header Installation by Juan Huerta

Revainrating 5 out of 5

Tight fit easy install

Used these on my 2006 f150 and so far so good. I like the locking mechanism to keep the screws from vibrating. They match my JBA headers perfectly.

Pros
  • Excellent overall performance
Cons
  • Not sure