An original cone-shaped filter with a central cone for Nissan Laurel RB20DET 1988-1993 using a wet cotton filter with excellent dust collection effect. It increases the flow velocity while rectifying the intake air.
The intake duct that surrounds the filter blocks the hot air in the engine room and suppresses the influence on the intake air temperature. These two effects dramatically improve filling efficiency. Stable performance is demonstrated even in high-load continuous intake.
