SKYLINE R34 GTR　order-made muffler sound 2,exhaust start up

order-made muffler (closed course use only )sound front pipe :trust 94Φ stainless steel muffler:order made 100Φ Titanium pipe cam: intake HKS Vcam Pro exhaust HKS 272° step2 turbin:Trust T88-34D engin:RB28