hey guys, this may seem like a really stupid question to most of you, but i am 15 and a complete amature wen it comes to car engines.
Currently got an 18rc, has had the head shaved, port n polish, cam grinded, and has got 4.2.1 extractors and p formance muffler.
just wondering if the 4.2.1 extractors can be put on an 18rg?
and wat sorta of performance i may get from my 18rc compared to a standard 18rg?