So I got my new wheels Monday, 17" Enkei RS5's. I go get my oil changed at Valvoline and had them take off my 18's and put on the new wheels. They put the spacers that came with the new wheels on the back but not on the front, saying they didnt need them on the front. Now, when I accelerate I hear the metal on metal scraping kind of sound coming from the front wheels it sounds like. Is this a result of the spacers not being on the front. Also note that the 18's I had on never had spacers and I never heard this sound. Any help or ideas would be much appreciated. Thanks

Spacers or the hub centric rings??? Cuz they're 2 different things and it sounds like you're talking about the hub centric rings... You need them on all four wheels.