I just went to the local car shop pricin a bag setup. He recommended the 1/4 manual setup. i told him i wanted at least 3/8's so we did all the math with runnin a 3/8's manual setup. Now im not real sure what the difference in the manual and havin silinoeds? I just want to bag the front for right now but its like 900 bucks installed for the front and 1400 for the whole thing. Any recommendations???????? I wanna do this right so anything you guys have to say would be greatly appreciated.