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Holden
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Stock Headers from a Holden EFI v8. Non EFI is very similiar but different layout
on where the exhaust ports on the head meets the headers.

Performance Headers from a Holden v8. Unknown origin. 4-1 (4 pipes into1)

Performance headers from aftermarket company for a Holden EFI v8. 4-2-1 type
(4 pipes into 2 pipes into 1 pipe.)