dudes driving JDM K20A Type Rs would need it to properly be able to whack the car to the engine's full potential. coz thats the fuel requirement for those engines....

some of my friends who uses the DC5 or EP3 before this if they wanna whack they had to pour Blue V Power AND octane booster. without the octane booster there will be pinging. but still driveable on normal daily driven basis...aka low rev.