Fellas, First and foremost this site is like a godsend for me.. I can sit and talk bikes all day and pass the time at work. hahahahahahaaaa But wanted to get your thoughts on the SBP expansion chamber vs the Honda CR80 expansion chamber. Now from my understanding bigger is better, so i was thinking the Honda CR80 would be the best bet. But after doing some research I i seen this SBP expansion chamber and according the to the site its specifically tuned for the china girl engines.. So my fellow bike brothers please shower me with your knowledge.. it would be greatly appreciated.