Seller notes

New never installed - I got the wrong size. After years of working on cars, I always use Stage 8 on exhaust manifold. No exception.OEM locking nuts are marginally effective, and both the nut and stud is one time use only. Rusty studs are risky and hard to remove, and new ones are not as secure. Use Stage 8, which is way more secure than OEM locking nut. Exhaust manifold has a lot of vibration from the pipe. They will loosen if not properly secured. Once they loosen, manifold leak will suck air i...

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