• Fast, Free Shipping

  • Price Match Guarantee

  • Family Owned

  • Award Winning Service

  • No-Hassle Returns

Memorial Day Sale Starts Now!

Thrush Glasspack Muffler

Thrush Glasspack Muffler
  • Regular Price: $53.15-165.05
  • Our Price: $36.09- 112.05
  • Shipping:FREE SHIPPING
  • Rating: (2)

Glasspack Muffler

Header Glasspack Muffler

  • Reduce back pressure and obtain a meaty growl for your vehicle when you use a Thrush Glasspack Muffler
  • Straight-through design offers maximum airflow and power with no seams to blow out
  • Heavy-gauge steel outer shell construction 
  • Two-stage fiberglass packing resists high temperatures; perforated center tube minimizes turbulence
  • Available in single and dual outlet configurations; Header Glasspack available in standard and turndown configurations
  • Wide variety of pipe sizes, body lengths, overall lengths
  • Red Powder Coat steel and 304 Stainless Steel finishes available
  • 90-Day Warranty

For years, glasspack mufflers have been a favorite choice of automotive enthusiasts as a handy way to minimize back pressure while amplifying engine noise. That tradition continues to this day with the durable, high-performance Thrush Glasspack Muffler.

The straight-through design of this glasspack muffler (like all glasspacks) allows for greater airflow than twisting mufflers. A perforated center tube combines inside this Thrush Glasspack Muffler with two-stage fiberglass packing and AKDQ bushings that expand when necessary to account for high temperatures and turbulence. The heavy-gauge steel outer shell of these glasspack mufflers by Thursh prevents seam blow out, meaning you can push harder to make your vehicle growl louder without worrying about destroying your muffler. A variety of inlet/outlet sizes are available to fit your exact exhaust configuration, and the Thrush Glasspack Muffler is available with both single and dual outlets or, in Header form, with standard and turndown outlets.

Get the glasspack your vehicle needs for the sound you've always wanted. Maximum airflow for maximum rumble can be yours with a Thrush Glasspack Muffler. Backed by a 90-Day Warranty.

Thrush Glasspack Muffler Customer Reviews


Overall Rating:

5.0 of 5

Average Install Time: 1-2 hours


Fitted this to a Dodge Ram 1500 pickup. Great sound from such a narrow muffler! Had to purchase a 3" dia extension pipe from O'Reilly to get it to fit in the space left by the oil drum size original muffler. Had to leave the rear expansion box as otherwise it would have been too noisy.

Install Time: 1-2 hours


The website is great and everything was easy to find. And the wait to receive it was not too long. I enjoy getting on the website and looking at all the accessories.

Install Time: 2+ Hours