Hello Folks,
Hopefully a GP owner can answer this. In looking at the cat-back systems offered by ZZP, there are two selections, one for the 97-03 GP and then the 04+ GP. What exactly is the difference between the two systems? I'm going to order one of the other for the Impala, and even though it's an 04, the body for the Imp didn't change till 06, instead of the GP in 04. I'm thinking I should get the 97-03 set, but am just not sure. My best guess is length, but I'm not sure.
Loud