The BSK-SYN116B Brass Rebuild Kit RSX 5 Speed (02-06) is a carbon-lined synchro from Synchrotech, engineered for Honda/Acura K20 & K24 transmissions. Carbon friction material grips faster and wears longer than factory brass, delivering smoother, more consistent shifts under hard use — on the street, strip, or track.

Why upgrade to carbon synchros:

• Faster, smoother engagement and reduced grind
• Superior heat and wear resistance vs. OEM brass
• Ideal for high-horsepower, high-RPM and track use
• Direct-fit replacement — no transmission modification required

Backed by Synchrotech quality and shipped fast from Speedzone Performance.