1. Fits almostfor NISSAN: CA18, SR18, CG13\/10DE, SR20, RB20, RB25, RB26, VQ20\/25\/30, VG30, all turbo and N\/A. for SUBARU: EJ20, All engines for MIT UBUSHI: 4G63, 4G93, 4G92, 6A12, 6A13, 6G72, for MAZDA: 13B,13B-REW, B6-ZE, TURBO AND N\/A, 13BT for TOYOTA: 4AGE, 4AGZE, 4AFE, 2EET, 4EFTE, 3SGTE, 3SGE, 1ZZFE, 2ZZFE, 1GGTE, IJZGTE, 2JZGTE, 7MGT 2. Prevents over revving the motor by cutting ignition and generating a flame discharged from the exhaust 3. Multiple flame options, including strobe flame 4. Material: ABS plastic case 5. New and high quality Spray fire method: 1. Warm up for more than 10 minutes , and the exhaust pipe needs no moisture. 2. Pull the speed to 3500-6500 rpm, press and hold the switch and step on the throttle one-third to one-half. (Half-second) The eye will see the rotation speed. At this time, the speed will be turned down from 6500 rpm . To the sound of fire, the switch can be released, and the throttle is continuously replenished. At this time, the speed will be pulled back to 6500 rpm, and this action will be repeated to sustain the fire. Note: Repeat the above action, if the speed drops to 1800 rpm, there is no fire, the switch must be released, can not \