This aFe Magnum FORCE silicone coupling straight reducer joins a 4-1/4" OD tube with a reduced connection and is intended as a spare part for cold air intake systems. The injection-molded high-temperature silicone bellow allows expansion and vibration movement; stainless steel worm-gear clamps provide tight, corrosion-resistant connections. It is not for use on pressurized, supercharged, or turbocharged applications.
aFe Magnum FORCE CAI Univ. Silicone Coupling Kit (4 1/4in. ID to 3.00in. L) Straight Reducer