TDI Posted May 15, 2006 Share Posted May 15, 2006 Hello, Just to let you know that the HKS high performance exhaust manifolds are avaiable now for £1157.38 including vat. We haven't tested any yet, but will do in due course. Please let me know if you have any interest. Thanks Quote Link to comment Share on other sites More sharing options...
stevie_350z Posted May 15, 2006 Share Posted May 15, 2006 what's an exhaust manifold? Quote Link to comment Share on other sites More sharing options...
TDI Posted May 16, 2006 Author Share Posted May 16, 2006 what's an exhaust manifold? The American call it a "Header". It's the part between the cylinder head and catalytic converter. A well designed manifold (header) will have tuned lengths to aid cylinder scavenging, and will have optimised runner volumes (too small will create aflow restriction, and too large will loose port velocity). There is a big difference between good and bad manifolds Quote Link to comment Share on other sites More sharing options...
StephenG Posted May 16, 2006 Share Posted May 16, 2006 I thought 'headers' were just inlet manifolds, not exhaust manifolds. Quote Link to comment Share on other sites More sharing options...
TDI Posted May 16, 2006 Author Share Posted May 16, 2006 I thought 'headers' were just inlet manifolds, not exhaust manifolds. Oh I see. Headers are normally exhaust manifolds Quote Link to comment Share on other sites More sharing options...
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