So, just curious if anyone has had issues with a hanging idle after installing Boyesen Rad Valves. My sled was running great with 1300 miles on it. It has a lot done to it, not a ton of motor mods, only think is an SLP Can with BMP temp sensor adapter. The sled was hanging the idle at the dealer and they called me to ask if that had been happening, it was not. The called Boyesen and they said to reset the Throttle Position Switch, so they did, and they felt it was fixed. Then I rode the sled twice about 100 miles each day, and intermittently it hung the throttle, it also did NOT feel like it was running that good, felt like it lost low end too. I then called Boyesen myself and spoke to the tech, he said he had only heard of one other sled doing this and it was the TPS, yeda yada. Then I rode the sled over 500 miles in colder temps and a bit higher altitude and it didn't hang once. Rode again this weekend in same area as the first time, and in warmer weather and is hung again. Maybe I am answering the question already, but could the exhaust can and/or temp module adapter be a bad combo with the Boyesen reeds??