Cut the groove on a 2007 honda hybrid 1.4 L engine . There was plenty of room for the groove thick throttle body. The throttle body was fly by wire and connects to a plastic intake. The groove went well and I`ll proably be doing another one for him later. I think he`ll be part of the team as soon as he gives it time for some mpg reports. Right off the bat he noticed the power increase. Dan gadgetman mo.