your not gaining anything by doing "true duals". the two sides are joined together cause it helps with scavenging.. getting the exhaust out faster. in other words, one side helps the other get out..and so on..
did you ever wonder y u dont see "true" dual systems anymore? you get more efficiency and velocity with them tied together.
however, if thats wut u want...go for it. your not really hurtn anything either
bbk ssi, 70ml t.b., bbk adj.reg., bd11-a 11psi, e-cam,
racing aod, 2700 stall, 3.42 gears, ported e7, 308ci, 1.7rr, comp .560valve springs, gear drive, high dwell module, msd 6a & coil, bbk off road xpipe, mac cat back, 30lbs inj, pro-m 90mm, welded subframe connectors, boxed upper & lower trailing arms, spherical axle bushings, 255/50/16 tires, 255lph pump, 456hp