exhaust manifold
 

hi ive a 1995 impreza turbo but just wondering how much differents there is between a normal turbo exhaust manifold and a sti manifold (headers) and up pipe

question 2 my engine in my shed got a compression tester any ideas how I can do a compression test on it
clutch died so I took the engine out forgot to do it before (der) and I don't really want to put it then to find out ive gotta take it back out again

any help would be great
thank you

age for age, no differences at all........