PLM Header Assembly Hardware Bolts Nuts 06-11 Honda Civic SI
Part Number: HEADER-MERGE-BOLT
Description: PLM Header Assembly Hardware Bolts Nuts
Details:
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 machined 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.