Brian Crower Valve Guides 6.0mm Intake Nissan RB26DETT 2016-2021-Honda-Civic Emission Code: 4

Emission Code: 4

Performance mount kit for J-series engine swaps into the 96-00 Civic

The Generation 2

100% Made in the USA

Brian Crower Valve Guides 6.0mm Intake Nissan RB26DETT 2016-2021-Honda-Civic Emission Code: 4BC premium valves guides are made from Manganese Silicon Aluminum Bronze alloy and CNC machined to exacting tolerances. BC guides are resistant to cracking and corrosion, while reducing friction and insures high lubrication even at elevated engine temperatures and rpm's. The perfect replacement to worn or damaged guides and 100% compatible with BC's lineup of stainless steel valves. A valve guide is a cylindrical piece of metal, pressed or integrally