This four (4) piece Ulta-Mat Doors and Rear Quarters Heat and Sound Underlayment Set is die cut specifically for your classic Mustang. The underlayment is a flexible and lightweight foil faced foam rubber sound and heat insulation material. The insulation material is a soft, self-adhesive semi-closed cell foam rubber. The foil facing of the material helps to reflect heat radiation. The foam rubber "cell" structure of the underlayment helps to reduce both heat and noise. The material can resist temperatures up to 320℉ (160℃). 

These Doors and Rear Quarters underlayment mats are vehicle specific, pre-cut pieces for direct-fit installation. Each underlayment is designed with premium quality materials for worry-free, lasting durability.

• A Sound Deadener to decrease road noise.
• An insulation underlayment to decrease Heat inside the interior compartment.
• Pre-cut for a Direct Fit installation to vehicle.