Fixed my idle issue by cleaning the EGR, but now I have a misfire at high rpm (above 4k). Could this be a bad coil or wire? I put new NGK plugs in gapped at .28 which didn't seem to help.
Mods are CustomMSP SMIC, Corksport Intercooler Hoses, Forge BOV and WGA, SRI, 2.5" J-Pipe/Mid-Pipe, and...