Synchrotech Hardened Sleeve 3-4 Honda Civic SI L15B L-Series

Improve shifting response with the MFactory R&D (Synchrotech®) Hardened Sleeve. This allows for quicker and more precise shifting and prolongs the life of your gear set.

Sleeve 3rd - 4th Honda L-series .. Unlike oem, these are very durable and proven to hold up to abuse. 

Fitment:
Honda L-SERIES 
Civic SI L15B 2017-2020

Synchrotech Lifetime, Globally Transferable Warranty
Whether used on the Street, Strip or Track ... Think! Synchrotech
No-Hassle, Just works!