Turbo Header Question??
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Junior Member
Joined: Mar 2005
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From: green bay wisconsin
Car: 94 impala ss 92 corvette
Engine: 350 lt1
Transmission: 4l60e
Turbo Header Question??
Can anyone tell me when people talk about primary tube size of a header like 1 5/8 or 1 7/8 inches....Is this the inside diameter or the outside diameter of the primary pipe?? Thanks...
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Apr 30, 2019 12:14 PM