i did this mod today. for the price invested it's pretty sweet. i went to home depot and bought some 3/4" pipe plugs but they didnt fit at all so i ended up using a bottle cap which worked suprisingly well along w/ some electrical tape. i'd like to find a better solution for capping the ends. my ultimate plan is to get a real BOV though. i LOVE the sound!
I give this mod two thumbs up, thanks for putting it out there.