FRS BRZ 60mm overpipe for 1320 Performance header only Invidia 12 Up Subaru BRZ Toyota 86 High Flow Cat Front pipe My Store Invidia 2022+ Honda Civic Sport (2.0N A) 60mm N1 Cat Back Exhaust TI Invidia 12 Scion FRS BRZ 60mm N1 Ti Tip Cat Back Exhaust. Description: N1 Exhaust Piping: 60mm Tip: 101mm Tip Style: Single Layer SS For a good balance of price and performance, Invidia offers the motorsport enthusiasts a strong line up of Invidia N1 Exhausts. Each Invidia Exhaust is constructed with high quality SUS304 Stainless Steel, CNC machined flanges, and manufactured with a polished finish. Each system features mandrel bent stainless steel piping for maximum exhaust flow and reduced back pressure. These exhausts are engineered to produce strong mid to top end power gains, as well as an increase in horsepower and torque.