I no u have all heard it before .. but iam looking at headers for my 2004 GTP Comp G and i was looking at zzp headers i mean there like $800 but i take it u get wat u pay for but i dont really no much about zzp. but i was also looking at pasesetters and i have allway heard great things about them . and a friend to me about speed daddy headers? any body no any headers that will fit. and r well priced and still give u the max HP and TQ??? any info is good info. thank u for ur time!