aFe Power Air Intake System 17- GM 6.6L Diesel 4704021-20-XL 1984-1995 Buick Skylark

1984-1995 Buick Skylark

One-Way Check Valve

2A/15 (TA15)

It eliminates the need for a mountinghole in the head when using early heads on a later application

aFe Power Air Intake System 17- GM 6.6L Diesel 4704021-20-XL 1984-1995 Buick SkylarkUnique One Piece High Quality Housing W Sight Window: A custom CAD designed roto molded housing made from heat soak resistant material eliminates the use of multiple components and ensures the coolest air intake charge available. A large clear sight window allows for filter inspection without removal of the air box. The roto molded housing is made out of black cross linked polyethylene. A urethane plug is also included if you wish to block off the