Ok, i have read and read and read... i have a 2016 veloster turbo manual transmission. Its has a little cone intake and a muffler delete. So i ordered a bluetooth obd2 scanner and hooked it up to torque pro and was looking through everything and noticed i was having misfires in all cylinders. No cel has been thrown. The misfires aren't loud gunshot sounding misfires. I do notice some loss of power. I checked spark plugs they were in fair shape. About to check the gap on em rn. I see alot of people have problems with the coils... but would i be getting a misfire in all cylinders and wouldn't i throw a code? I know gdi's get dirty. Should i clean IM? any help is greatly appreciated. Thank you.