what is the difference between an E cover vs an S cover

derick's gn

New Member
Joined
Jul 7, 2009
i see these terms alot here but what is the difference?
does it matter for a strictly driven street car?
or is it only on the larger size turbos?
i did not see it in any of the sticky's.

tom
 
E cover is 3" in and 2" out S is 4"aluminum in and either 2.5" or 3"in out i don't remember.
 
Hartlines have a new post for turbos in the specials section and it tells the inlet and outlet sizes for the E, S, and H covers

David
 
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