I don't profit in any way from Diablotin or pipe - just flys's better than anything else I have tried to date. I bought 2 from ICARE in Canada and 3 from esprite models - they come in diff color combos for about $275 + ship. the escomposites.com cf pipe is a must have - it weighs much less than stock muffler adds about 20% power, stretches the power band around hover speed, redistributes weight back off front of airplane, has a nice quiet thuddy exhaust note for long hours of hovering next to your ear, and is almost indestructable - will last a lifetime.
I tried to contact the designer and producer of the diablotin to see if other similar kits are available www.jr-models.cz but I need an interpreter - can anyone help? he is a modeling genius, he must have a phd in enginering and work hard everyday - nobody else in the world can do it. he went to that same light building school as dick hanson but after a few lessons dick grew long hair and droped out. cz dude struggled on to graduate top of the class with honors - what is his name and how do you pronounce it anyway?