does there suppose to be a gap in the 2 halfs of the AST tank,look at the pic I loaded up

 

Looks normal to me

 

i don't see any gaps, looks like a normal POS stock AST to me.

 

That's a normal AST. Get rid of it and replace with an all aluminum or do the AST elimination.

 

The only gap I see is where your intercooler pipe should be. The AST should be bolted to the intercooler where the bracket with the hole in it is sticking out in the photo.

 

I don't see a gap in that AST. But more importantly it has turned green (yeah big surprise) time to get rid of it... Like yesterday

 

+1 they start life black, and they get green and brittle as they age

 

Yeahh , delete that AST it really isnt necessary and its a reliability risk , youi never know when it may blow up dump all your coolant and overheat your engine .

but if you are adamant about wanting one , buy an aluminum one