I just bought an 08 450r and want to pull the baffle out and run without the air box lid. I have searched but cant quite find just what im looking for. I need to know what size main jet and what size slow jet i need, and if i need to move the needle clip. Any help would be greatly appreciated. Thanks ahead a time.

Bryan

 

i put a 175 main jet in mine when i did that and it was alot faster