A bit of hose for your ear, holding it at the very same place for each one's 'hiss' for comparison - Seems equivalent, They're equivalent. Would even be good to be aware of when you are using the OEM ECU or an aftermarket selection, and what other mods might have https://4age-blacktop-engine-for51278.alltdesign.com/the-5-second-trick-for-4age-20v-blacktop-51930305