Pipe rankings?

Just curious how you guys would rank various pipes as far as best to worst. Im looking for a pipe for my fx1 and ive seen a few lists of what will and wont fit, but not which ones are better and worse.
I know there is a difference as far as top end vs bottom end aswell, what pipes are for what?

also, any review of the Yamaha FX-1 Rev Exhaust by Pro-Tec Racing? i found them for sale new but as far as i know fx1 b pipes arent sold anymore.
 

Ericfox

Do it twice?That's DooDoo
Pipes for freestyle?

If so... I like bpipe best... riva red, riva freestyle pipe (type 4?), and speedworx freestyle pipe are good ones too...

get a used fx1 bpipe... I see them for sale sometimes... even if you can only get the chamber... others might work too... not sure... headpipe and manifold should be same as other bpipes
 
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dfw
On an fx1 it wont matter because your pump cannot convert the extra power into thrust. Find a high rpm pipe and use a flat prop.
 
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