I'm going to replace my pipe with either a FMF Performance or White Brothers E-series, which one is best or they about the same? Also, do you need to replace the head pipe on the warrior, since it is already on the big side, would it be to any advantage to replace or use a slip on????

 

i was looking at both of those pipes for my warrior and i decided to get the e-series.the fmf is a good pipe but i like the e-series better.

 

I like the sound, looks, and performance of my e-series. As far as power goes I believe the fmf is about the same thing. When I looked for a header I couldn't ever find one, but as big as it is stock I don't think a bigger one one help, it may cause too much airflow, which would result in a warped or burnt valve.

 

i have a FMF on my 97 warrior and i like it a lot. Performance wise i believe they are about the same. You do not have to replace the head pipe but if you do i believe it is to your advantage. You can find FMF head pipes at fmfracing.com. They have 2: the powerbomb header and the high flow header pies.

 

Did you notice any major gains after installing your pipe, and did you replace the head pipe or use a slip on??

 

I have a White Brothers E-Series exhaust on my 99 Warrior and I like it. It does pretty good and it does add a little extra power throughout the powerband. But with a K&N air filter,150 main jet & 45 pilot jet I could really tell a difference. My Warrior can now pull a wheelie in second gear.

 

you can only pull a wheelie in 2nd gear now? I could pull one in second gear bone stock, and with what ive done now, i can get it up in third. Oh well.