Hi again everyone ive only posted once on here because theres always been answers for anything ive ever needed but i havent found an answer to this . i have 2010 v6 ls and i just recieved my 20's in the mail today

which im ecstatic about and i was looking to put 1 1/4 lowering springs on it. i would like to know if this is even worth doing with the 20's on it and also what should i expect performance wise from doing this option ? thanks