ive searched and searched and could not find anything to help me. A while back i installed a jba shorty header and after i heard a faint ticking noise under acceleration. thinking it was an exhaust leak i reinstalled the header and replaced every gasket, used sealant, and torqued it down right. still there. took it to a meineke and had it tested for a leak, they said there wasnt one. im confused to where its coming from. could a collapsed pvc hose or bad egr be causing this? its only under load, in park or neutral when i rev its not there.