That is a very good point and a question I originally thought about. It should insulate the manifold from the head and at least keep the runners cooler than stock. We will see though...eh? wrote:I don't see the point of those on an RB manifold. Coolant will flow though the intake manifold even with those, so how much could they possibly lower temps?
I don't know about you, but I just shaved the coolant passage lines. The only ones left are under the mani. Tennessee weathes says I don't need them....eh? wrote:I don't see the point of those on an RB manifold. Coolant will flow though the intake manifold even with those, so how much could they possibly lower temps?
ehh so a bit more than both my exhaust and intakes together... I'd like to see some feedback of what they actually do once tested.Darius wrote:I got mine for "free" but XS-Engineering sells them for $85.