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Showing results for tags 'headers/extractors/exhaust'.
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hey guys, I'm getting some custom headers made up (tuned length) with mandrel bend and exhaust (with hi flow cat etc) i just need some help in what size tubing i need and the thickness ? they will be 4-1 headers, however I'm unsure to what size/thickness to get for max performance. this is what my build is 4age 20v toda over sized high compression forged pistions C/R 12:5:1 H beam forged condrods ARP head studs ARP crank studs Kelford 194-C racing cams Toda racing adj. cam gears Full head reco port and polish Supertech 1mm over size valves Supertech racing vavle springs Tomei crank caps TRD 0.8mm multi layer metal head gasket TODA timeing belt 1zze Coilpacks ITB'S (trumpets) thanks :)
