CSI fuel rail plug size

blk92suprat

J Zizzle
Jul 6, 2008
453
0
16
USA
the smallest M12x1.25 I can find is 20mm length. Is this too long to cause flow issues? what did you guys use in terms of length?
 

Enraged

A HG job took HOW long??
Mar 30, 2005
1,843
21
38
Victoria, BC, Canada
if you cut down a bolt, run a die over the threads. You don't want a sharp or bent thread to tear up your fuel rail.

if you dont have a die of the right size, you can put a nut on the bolt, cut the bolt and file the edges, then back the nut off.