My Warrior has a White Bros. E-series slip-on and a K&N air filter w/o airbox lid. I can feel air coming from cracks in the headpipe hitting my left leg when I crank it/ when it runs. How serious is it? Should I order a new headpipe? Will it cause big damage? They're only an inch or 2 away from where the pipe meets the head. Thanks!

 

Yes, replace it. They will cause your machine to run lean/could damage the engine. Any idea why it has cracked? You don't see that often.

 

No idea. It was like that when I bought it. It's a '95 and the pipe is pretty rusty. The crack is along the pipe, not across it. I've heard that the stock pipe is pretty good, so I'll just try to find one in good condition for cheap.