Big Gun 04-05 Honda TRX 450R Rev Box Marketing>Marketing AST Linear Race Springs -

AST Linear Race Springs - 150mm Length x 90 N/mm Rate x 61mm ID - Single

Ram-Air houses a giant filter in an enclosed cold-air box

The housing features a built in air inlet scoop

7 hp) at 5

Measured Flow: 490 CFM @ 7" H20

Big Gun 04-05 Honda TRX 450R Rev Box Marketing>Marketing AST Linear Race Springs -If you are looking to swap out your stock CDI box, the Big Gun Over Rev Box is an affordable alternative to highly priced OEM replacement boxes. It increases the overall RPM limit over the stock box and advances the timing curve. Easy direct plug in replacement to stock CDI box Increases overall RPM limit 6 Month Limited Warranty Advanced timing curve