I installed a Dynomax bolt on cat back system. I got it from Jegs part #289-19422 around $467. Summit part #wlk-19422. It went on easy, hard part was getting the old one off, cutting the bumper wasn't to bad when i took off the oem msystem i traced the other side and made a template flipped it to cut the other side, i then had to rig a head shield for the gas tank. i used adheisive heat shield from jegs. I think after reading from forums i will prob rework rethink the heat shield.