Dynamat Seat Kit Xtreme Custom-Cut Under Rear Mustang Hatchback 1979-1993



  • Reduces Engine and Road Noise
  • Peel-and-Stick Backings
  • Precise CNC-Cut Pieces
  • Made in the USA
MSRP $110.00
You save 20%

Dynamat Xtreme Custom-Cut Under Rear Seat Kit for 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992 and 1993 Hatchback Mustangs.

If you’re searching for the perfect update to create a quiet and enjoyable cab experience in your 1979-1993 Hatchback Mustang, fresh insulation is a must! Revolutionize your road noise management with the Dynamat Xtreme Custom-Cut Under Rear Seat Kit (XFO M3 U) from CJ Pony Parts. This kit includes the panels for the driver and passenger under rear seat sides and two panels for the inside of the quarter panel.

Features and Benefits:
- Reduces Road and Engine Noise
- Peel-and-Stick Adhesive Backings
- Precise CNC-Cut Pieces
- Easy Installation
- Made in the USA

Each piece is made in the USA and is CNC-cut for a precise fitment and premium road noise reduction. Complete with a peel-and-stick adhesive backing, this kit is easy to use and will take your classic cab to new heights of comfort and luxury!

Kit Includes:
- Panels for Driver and Passenger Side Under Rear Seat
- (2) Panels for Inside of Quarter Panel

Vehicle Fitment:
- 1979-1993 Hatchback Mustangs
*NOT for use with Coupe or Convertible models, please see P/N: UL81.

Tech Tip: We recommend using this product in conjunction with Dynamat DynaTape P/N: 13100 (NOT Included) when necessary to help seal seams, hold down loose wires and more.

Please Note: Test fit first. Partially pre-peeling release paper backing, and folding aluminum faces together makes for an easier installation in tight spaces. Once adhered to door, smooth with Dynamat Professional Heavy-Duty Rubber DynaRoller P/N: 10007 (NOT Included) for best results.

California Residents: Proposition 65 Warning

Installation Difficulty


Intermediate skill is required for this installation.

Vehicle Fitment

This product will fit the following Mustang years:

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