Quote:
Originally Posted by Accurate Race Shop
I did a cylinder pressure test on the block to make sure that the head gaskets are not leaking. Unfortunately Subaru does not have a great history with head gaskets and I just had to change them in my Legacy. But the pressure test will tell you if you blew the head gasket or warped a head as it will leak.
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Given that you need to lift the engine to change the spark plugs on a BRZ/FR-S (by the manual), would it be practical to do a pressure test?