PLM Header Assembly Hardware Bolts Nuts

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PLM Header Assembly Hardware Kit Fitment: PLM Headers that utilize slip-fit collectors B-Series, K-Series, D-Series Replacement for all stock hardware to screw in studs with machin ed nuts Kit Includes: 2 bolts 2 nuts (4 nuts for the long version) Features: 8.8 grade or higher quality bolts Direct replacement Short bolt is 2 3/8" inches in length Long bolt is 3 1/2" inches in length Which one do you need, short or long? Most PLM headers utilize the short version. Once the slip-fit collector is fully inserted, the short version hardware fits perfectly. On rare use cases, such as the H-Series Ramhorn header, where the 4-1 merge collector needs more adjustability, you will need the long version to allow more play in the slip-fit collector. Show more