I have been saving some cash for the ls1 conversion maf. I seen there is 3" & 3 1/2" What do you guys runs? If I went 3 1/2" would I have to change my piping and air filter as its 3"?
The reason I want to do the swap is I have had two bad maf in the last year. My car runs low 12's all day. Wuold I gain anything for ether 3" or 3 1/2"?