Magic you can post all you want. I would suggest vac controlled cutouts in conjunction with a restricted (quiet) ex system. that way you are in stealth mode & when you nail it, it'll all be over in ten seconds & all you have to do is go collect the money from the (neutral) third party. they'll never know what hit em! If you have a 3" system rearward you will need to get creative in order to keep it to a reasonable roar (if desired). just me I would do a 3" or 3.5" cutout (whatever your collector dia is) for max horsepower/fear factor right there at the collector flange then T from it into a quiet system (2.5" with restricted (quiet) muffs) rearward. that way you dont have to mess with pulling (2) cables as your undivided attention is needed elsewhere