I think they are not match for TRD
and those better known brands. My girlfriends car has the 5zigen Fireball exhaust and its silenced (sucks IMO). Well let me say this, her and her brother both prety good drivers cant beat my car which has TRD
exhaust only, her car has Injen
and the 5zigen exhaust. Dont recommend it
Both Celis are Manual GT.