maerijn Posted July 22, 2019 Posted July 22, 2019 What is the threadsize of the nuts on a zisco ramhorn? I would like to replace mine but standard Toyota exhaust nuts are a different thread Quote
BurtEP82 Posted February 7, 2020 Posted February 7, 2020 I’ve just cleaned my stud holes in the head with m9 1.25 tap and nuts are the same. Don’t see why stud thread would change when fitting a different manifold, unless you mean studs joining manifold to turbo? Quote
batbo Posted March 16, 2020 Posted March 16, 2020 (edited) The threads on the zisco ram horn are not the same as the oem toyota studs - yeah at the turbo side. Edited March 16, 2020 by batbo Quote
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