New intake and exhaust//power loss?

Hey rotor heads I'm new to the club but I came here seeking help as most people do. I recently installed a full racing beat rev-8 intake, exhaust header, dual resonated midpipe, and catback system. Car sounds incredible but it feels like the acceleration was cut in half. I can't even spin the tires without dropping the clutch. It's an 07 rx8, motor was replaced 35k miles ago under the warranty so it's a 2013 motor. i smell more fuel smell outside the car than before the install but I don't know if that's because of the cat conv removal with the midpipe or not. Please help!