Does anyone know how big of a spacer I would need to run 15 X 3.5's on the front of a 1994 cobra? I know I'm going to need a spacer but does anyone know how big? I've been told 1/4" and I've been told that's not big enough. Anyone know for sure?

 

3" long studs for starters, a 3/4" spacer... some say you can use a 7/16" spacer...

but I say... why ruin your ability to stop?

 

where's a good place to order the studs and spacers?