I noticed the corsa touring or corsa sport systems only offer a connection to my dual stock pipes then a y pipe into a single rear exit 3" my questions is with long tube headers no cats but the little resonators provided with the obx long tube set up with 2.5 inch collectors and dual 2.5 to the muffler would this be enough flow for a magnacharged 6.0 or would it get chucked up? Also how loud would the corsa sport be over the touring with no cats?