Quote:
Originally Posted by c0sie
Whats the difference between red, blue and orange pistons (other than the colour.....)?
I have red and orange pistons here....would they be ok? or is the blue piston a MUST?
Thanks 
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yeh, it's the size of the hole.
Red has the smallest hole and blue the largest hole, with orange in between.
I would have thought blue would be too soft.