Here is some additional ETS i/c info:
ETS Core:
Weight: 13lbs
Type: Bar and Plate
Tall: 5.5" Tall
Thick: 5.0" Thick
Wide: 20.0" Wide
BMW Core:
Weight: 7lbs
Type: Tube and Fin
Tall: 5.0" Tall
Thick: 4.0" (Dual Pass Core w/ .25" plate in center)
Wide: 20.0"
10% Surface Area Increase Over Stock
37% Volume Increase Over Stock
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