OP
this is old but i def agree..cuz id say a 145 at 34 hz is gonna move alittle more air then a 150 at 40 hz or above..when i put the 8 inch port on the level 4 it wasnt as loud when the bass was lower but sure as hell moved the girls hair alot more that was sittin in my carGood job man. Try some more port area //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif And, just because a car is doing a 150 doesn't mean it can necessarily move that much air.