Product Overview:- Motor Mount Inserts 'S Motor Mount Inserts Are Crafted Out Of Polyurethane, A Material Much More Durable Than Rubber That Can Handle Intense Weight, Heat, And Pressure. Designed To Fill The Voids Built Into Your Oe Motor Mounts, These Inserts Will Drastically Increase The Power Transfer Efficiency From Your Engine To The Wheels. Since The Voids Were Initially Put There To Reduce Nvh, It Stands To Reason That Filling In Those Voids Will Have The Opposite Effect. Installing 'S Motor Mount Inserts May Increase Your Nvh, But The Increase To Overall Performance Is Worth It To Some Drivers. To Top It All Off, 'S Motor Mount Inserts Are Covered By A Lifetime Product Protection Handled In-House Here At Dst.Product Info:- 91-99 Compatible With Nis-San Sentra 4 Mount Kit - Red- Color: Red- Motor Mounts Are Designed To Limit Movement.- Put Maximum Power To The Wheels.- Application Specific Engineering Designed To Provide You With The Performance You Demand.- Many Mount Designs Feature A Poly-Locked (Run-Safe) Feature.- Manual Transmission Models OnlyManufacturer Part Number:- Part Number: 14-1901Product Contents:- Part #14501 Quantiy 2- 2 Of Engine Mount Insert - 69126- 2 Of Metal Sleeves - 60872 (3/4 X .406 Id X 2.350 Inches)- Part #14502- 2 Of Passenger Motor Mount Inserts - 69127- 1 Of Metal Sleeves - 60872 (3/4 X .406 Id X 2.350 Inches)- Part #14503- 1 Of Torque Strut Insert Bushings, Small - 69128- 1 Of Torque Strut Insert Bushings, Large - 69129