I agree, I seen a Z with a HKS Hyper carbon TI exhaust system and was stunned, it had the titanium tip and monstorous rumble. Is there better exhaust systems sure and I dont want to be out of place, because some of you may believe I am new to the site. Yes I became a member recently but that dosen't mean I haden't viewed it plenty of times, also theres no question if you look at the charts HKS gives you the bang for the buck so you can sphere expense but still get quality. Just my oppinion.......MR.Z