I remember when extrude honing was promoted as the next big thing... at the time it was on the 5.0 Ford EFI intake manifolds...

Anyone on this forum ever extrude hone a set of e body hemi exhaust manifolds ? Does it really make any measurable difference in performance with a full length exhaust system?

Thanks
Craig


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Last edited by Craig J; 03/08/24 10:21 PM.