ive been wanting to get a diffrent set of coils no problems but wanted to see what else was out there for maybe a hotter coil and the 4.6l ford and the 4.7l share a few parts together and looking at the coils there really close so i ordered the cheapest aftermarket one i could find and for one was $20 so i figured i would use it as a test fit and if it works ill order more if not oh well but from what i read its a sub company of accel and wondering if anybody has heard good bad or indiffrent about the rally brand they also have a lifetime warrenty on them