This system can be used with the factory skid plate. BORLA® Cat-Back™ TM & Rear Section exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA® Sound of Power respected by motoring enthusiasts everywhere. Fits 2011-2014 Jeep Grand Cherokee 5.7L Hemi