2004-2005 Honda TRX450R/ 400EX JC Racing Billet Airbox Ring BAFR05

Billet Aluminum Airbox support ring for the 2004-2005 TRX450R and ALL YEARS TRX400EX / X.

It supports the intake boot from collapsing when tightening the clamp on the air filter to prevent sucking dust, dirt, and mud into your engine.

It also allows the use of the LARGER better filtering and performing 4.5" Air Filters.