I just swapped my exhaust out it was jba shortys and magna flow cat xpipe and cat back 2.5 now its jba shortys flowmaster off road x 3" and jba3" back to tips to say the least its 5x-6x louder then my old set up and fill like I lost power.... tuner told my my set up was maxed out so I went bigger... will cats quite it down any and maybe give me a little more back pressure or will that be a waste of time at point?