I broke down and ordered a Buku Performance pipe today for my Revo. I figured i would give it a try. Everything i have read they seem to work. Should be in next week sometime. I will post how it works for me.
Depends on where you read. Around here they don't have a very good reputation. Conceptually it seems like it should rock but people seem to have a lot of tuning issues.
They look like the old CVEC I had on my Nitro Sport w/Pro .15. I was always chasing the tune with it but then again you're always chasing the tune on a Pro .15
I got it in the mail today, I will try to put it on tomorrow and run it. I will do a few radar runs with it stock and with the pipe for comparison, even though i am not looking for any more speed but it will be interesting to see the results.
I took it out today and ran it wit hthe Buku pipe. It does run diferent seems a like it has more low end and top seems to be good. I never got a chance to realy tune on it my little buddy next door came out when he heard it running and it is hard to tell a six year old to wait why i tune it. so i left it on the rich side and let him run it. I will try to get some time with it over the weekend.
I hope that they have gotten better in the past few years. I have only seen a couple and they were terrible. I true is a great concept and in theory it is great. But maybe it will work for you. Let us know how it comes out