Just curious to what you guys think about the ZZP front PLOG on a 2005 GTP. Anyone done so? and if so, what kind of gains have you got. Just wondering if its worth purchasing if im not planning on getting headers. Just got a 2.5" downpipe w/ cat. Thats all im doing exhasut wise, sticking w/ stock pipes. Just tell me what you guys think. Also if anyone has used front PLOG for a 2005 gtp hit me up cause ill purchase them off you if ur willing to part. Thanks