rmsnoel Posted July 31, 2013 Share Posted July 31, 2013 You already have the best inlet manifold so why not go get a 50mm throttlebody . 4branch exhaust manifiold next.Saying as you have a knock sensor why not use a thinner headgasket and run super unleaded or advance timing Quote Link to post Share on other sites
Mernagh Posted August 14, 2013 Author Share Posted August 14, 2013 50mm off a ep82 ? I heard its very hard to get a 4 branch for the 4efe tho ? Quote Link to post Share on other sites
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