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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4
NS4-HDG6 kit features ACT's most popular Heavy Duty pressure plate
Bolts On to Factory OE and Aftermarket Exhaust Headers
Special Comments: RWD 1991 Buick Roadmaster Engine: 5
smooth airflow paths
Compression (Factory Head Gasket) Compression (A'PEXi Head Gasket) 814-N401 :
aFe Magnum FLOW OE Replacement Air Filter w/ Pro 5R Media (10-10001) 16320 NS4-HDG6 kit features ACT's mostMagnum Flow Pro 5R Round Blue Air Filter (10 10001) by aFe. Constructed with 100% polyurethane on top and bottom, this high flow, oiled OE replacement performance filter will outflow stock paper filter for improved horsepower and torque. Five layers of progressively finer mesh cotton gauze media provide maximum airflow for best performance results. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent