Join Date: Aug 2002
Location: South Australia
Thankyou very much for that information! Good to know the main benefit is achieved from external coating, with perhaps some minimal internal coating, I guess the first few inches/centimetres of the pipe inlets.
Would it be advised to mask off end sections of the external piping, such as where the headers fit into the engine block exhaust ports, if there may be a fitment issue due to being overtight with the ceramic coating?