Home / Honda / ATC250R / Intake / Uni Foam Filter Uni Foam Filter$49.95 Uni foam filter. Uni Foam Filter quantity Add to cart Categories: ATC250R, Honda, Intake, Intake, TRX250R Description Description Uni foam filter. Related products ExhaustHonda TRX250R Big Bore Pipe 350D LED 350D exhaust. For use with motor sizes of 330-390 For cross country, MX and trail riding applications. Price is for the pipe only. ATC250REngine TRX250R Bottom End Kit TRX250R Bottom End Kit EngineHonda TRX250R Seal Kit Seal kit ExhaustHonda TRX250R LED Big Bore Silencer Round Big Body For motor sizes 330-430. Round muffler big body. For use with LED 350G, 350D, 350J, and Puma exhaust.