Corsa 2011-21 Jeep Grand Cherokee Xtreme 2.5in Cat-Back Dual Rear Exit w/ Single 4.5in Polished TipsCorsa 2011 21 Jeep Grand Cherokee Xtreme 2. 5in Cat Back Dual Rear Exit w Single 4. 5in Polished Tips CORSA's 2011+ Jeep Grand Cherokee Xtreme dual rear exit cat back exhaust system has arrived! Custom tuned for the Grand Cherokee 5. 7L V8 engine to deliver intoxicating exhaust notes upon cold start and under heavy acceleration, this cat back exhaust system unleashes the Hemi V8. The CORSA Xtreme dual rear exit exhaust system is engineered to out