FMF or Pro Circuit

[yz250metalhead]

I can't decide which one to get a Pro Circuit Works pipe, or an FMF Fatty pipe. Which increase performance in all ranges, this is for my 2005 YZ250.

 

[bclapham]

ive had both pipes on my RM250, both are good, but for me, i like the added bottom of the fatty, with the stock silencer to help wiht the overrev.

since the RMand YZ engines are clones, i expect the same effects with both pipes

http://www.dirtrider.net/forums3/showthread.php?t=119230&highlight=rm250+fatty

 

[sodflyer]

For my 2004 YZ250 I did not try FMF but went with the PC works pipe and silencer along with Vforce 3 reeds...... and rejetting it too, I like it!! Good lowend now :)