So I've got my exhaust setup complete and I LOVE IT! I put on SLP Creamic LTs, SLP Short O/R X-pipe, and the Steeda cat-back. Now I was expecting to loose low end power, which I did. I missed the low end power cuz if im in 4th gear and i put the pedal to the floor and im below 2k rpms.. nothing seems to happen. Well I let my friend drive the car and he said it really feels like the power is there but something is just keeping it back. Well I figured it was because I lost a lot of backpressure, the car feels AWESOME up at 4k but I was curious if there is anything I can do to fix the problem. Would getting a bigger TB/Plenum help any by letting more air in? Thanks in advance.