Expansion chamber choices

[Frogster]

Hi there guys, from your experiences, who sells the best expansion chamber for an 66/80cc two stroke engine? Ive been shopping around and Ive seen alot of different variations of the expansion chamber shape and so im wondering which ones are the best?

 

[biknut]

I can tell you that a SBP pipe works a lot better than a BGF banana pipe.

 

[obesepolice]

I have the sbp expansion chamber. It was a huge improvement to my bike. I wasn't really digging the silicone couplers, so welded it all into one piece and wrapped it in one inch header wrap.

 

[maniac57]

I use a cheap pocket bike pipe reworked to fit my Pig because it was cheap, but the SBP seems to be one of the most highly regarded among people who buy them retail.
Here's my Pig with the pocketbike pipe.

 

[Frogster]

Ya, i was thinking the Banana pipes didnt look like they had enough capacity to do an amazing job. Does anyone else sell an expansion chamber pipe like the one that SBP sells?