Supertech Piston Rings - - ACURA TSX BASE K24A2 L4 ; - FORD FOCUS LX;SE;ST;ZTS;ZTW;ZX3;ZX5;ZX4 ST N/A L4 ; - FORD FOCUS S N/A L4 ; - MAZDA 3 BASE N/A L4 ; - MAZDA 3 BASE;MAZDASPEED;S;SP23 N/A L4 ; - MAZDA 5 GRAND TOURING;SPORT;TOURING N/A L4 ; - MAZDA 6 BASE;I;MAZDASPEED N/A L4 ; - MAZDA CX-7 GRAND TOURING;SPORT;TOURING MZR L4 ; - NISSAN 180SX S13 SR20DET L4 ; - NISSAN 240SX ALL ALL ALL ; - NISSAN BLUEBIRD U12;U13 SR20DET L4 ; - NISSAN PULSAR GTIR SR20DET L4 ; - NISSAN SILVIA S13;S14;S15 SR20DET L4 ; - GNH8750 Supertech Piston Rings are manufactured in Japan with the latest technology for high performance applications. Supertech Pistons Rings are sold *Per Piston*. For Example, when order for a 4 Cylinder Model, order 'Quantity: 4'