400ex header
#1
400ex header
Ok I have a HMF slip-on and i'm planning to get a 416 this summer. Well anyway I don't want to sell my pipe and buy a full system because I'm only 14 and tryin to save some money. Well will this be okay just to leave the slip-on there? It's jetted. Another possibility is to grind out my stock header for more flow. Would this help out alot? Would I need to re-jet? Thanx
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