I love this Forum! My question is, has anyone replaced their cats on their 07, 4.7 flex 4x4. I'm looking for a direct fit. Magnaflow has the 5.7 listed but nothing for the 4.7. Magnaflow has a cat system listed for the 07 Grand Cherokee 4.7. I'm wonding if I can use the Grand Cherokee cat system on my Commander. I appreciate the help!!!