It doesnt work very well. the adapter is for a honda exhaust going to klx style head or you can add 3 exhaust gaskets.
I tried putting a spare piranha motor in our Pitster while our race motors were at Firepower. I scraped it when i couldnt get the exhaust to mount up. I would call or email Terry at Firepower and ask him. Or you could always call Matt at Pitster also.
Adam McGee Racing 11 running 2 Pitster Pro's and a Xtreme custom flat tracker. Thanks Firepower Minis, Tbolt Usa, Atv Fourplay, Pitster Pro BRM Offroad graphics, Titain Motorworks , Motocross Vests Champions Choice
Moto X Outcast 2012 90cc 3rd place
Steve Nace Indoor Winter Nationals St and TT 2011-2012 and 2012-2013 2nd place.