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Thrush Glasspack Muffler Sound SampleTenneco, Inc., Walker, Dynomax

Thrush Glasspack Deep Performance Tone Inlet 2.5 Pipe Connection Outlet 2.5 Pipe

4.6 out of 5 stars 1,524 ratings

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About this item

  • VINTAGE SOUND -- Delivers a powerful tone that is ideal for muscle cars, trucks and classic vehicles
  • PREMIUM ACOUSTIC CONTROL -- Exclusive Continuous Roving Fiberglass (CRF) technology absorbs unwanted interior resonance
  • ENGINEERED TO LAST -- Durable heavy-gauge steel shell with high-gloss red powder-coat finish
  • SUPERIOR PERFORMANCE -- Straight-through design for maximum flow and power
  • FLEXIBLE SOLUTION -- Customizable design offered in a variety of styles and sizes for universal fitment (may require specialized fabrication and/or welding)
  • SPECS -- Available in 3.5-in. or 4-in. body; offered in a variety of overall lengths and inlet/outlet size configurations; see product specifications for more information
  • BUY WITH CONFIDENCE -- Comes with Thrush's 90-day limited warranty

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This item: Thrush Glasspack Deep Performance Tone Inlet 2.5 Pipe Connection Outlet 2.5 Pipe
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From the manufacturer

Thrush Glasspack module 1
Thrush Glasspack module 2

Thrush Glasspack Muffler

With a straight-through design for maximum flow and power, Thrush Glasspack mufflers feature exclusive Continuous Roving Fiberglass technology that absorbs unwanted resonance while maintaining a powerful tone. Available in a variety of sizes, Thrush Glasspack mufflers have a heavy-gauge steel shell with either a high-gloss red powder-coat finish or a polished stainless-steel finish for lifelong durability.

Thrush Glasspack Module 3-01

VINTAGE SOUND

Delivers a powerful tone that is ideal for muscle cars, trucks and classic vehicles

Thrush Glasspack Module 3-02

PREMIUM ACOUSTIC CONTROL

Exclusive Continuous Roving Fiberglass (CRF) technology absorbs unwanted interior resonance

Thrush Glasspack Module 3-03

ENGINEERED TO LAST 

Durable heavy-gauge steel shell with high-gloss red powder-coat finish or a polished stainless-steel finish

Thrush Glasspack Module 3-04

SUPERIOR PERFORMANCE

Straight-through design for maximum flow and power

CHOOSING THE RIGHT SOUND

Thrush_012022_Amazon+_RattlerMuffler_Module4

From a low growl to an attention-grabbing roar, the sound of a muffler is an important part of any custom exhaust build. Thrush performance mufflers come in a variety of sounds to match your vehicle’s style. Looking for something deep and throaty? Thrush Rattler and Thrush Welded mufflers both have a deep aggressive sound. Hush Thrush mufflers deliver that perfect hot rod and muscle car sound while Thrush Turbo mufflers have that classic sound that you can only get with a Thrush muffler. For muscle cars, trucks and classic vehicles, a Thrush Glasspack muffler has a powerful, vintage sound.

Thrush Glasspack Module 5-01

WHAT DOES A MUFFLER DO?

Located under the vehicle, the muffler is a key part of a gas-powered vehicle’s exhaust system. Attached to the tailpipe, the muffler is designed to quiet the sound of the engine as emissions pass out of the vehicle. The muffler can also enhance performance by getting rid of all of the exhaust gases and taking in oxygen faster to generate power.

Thrush Glasspack Module 5-02

STRAIGHT-THROUGH DESIGN

Featuring a compact straight-through design, glasspack mufflers feature fiberglass wound around a perforated tube and enclosed in a steel shell. The exhaust passes through the center of the pipe and the padding muffles the engine vibrations and sounds. Ideal for racing applications, glasspack muffler.

Thrush Glasspack Module 5-03

FLEXIBLE SOLUTION

Offered in a variety of styles and sizes, Thrush mufflers are ideal for performance and vintage applications where the ability to customize the exhaust system is needed. Installation of Thrush mufflers typically require some modifications including welding and/or fabrication. You might need to cut pipe or fabricate new hangers if they don’t match up with the existing hangers. Consider the design when choosing a Thrush muffler.

Thrush Glasspack Module 5-04

SIGNS OF A FAILING MUFFLER

Mufflers primarily deteriorate from the inside out due to the acidic moisture produced by the combustion process. Signs that it may be time to replace your muffler include: loud or unusual noises coming from the muffler, a foul odor in the cabin from the muffler not properly filtering exhaust gases, distorted body shell and reduced gas mileage from a failing muffler causing the engine to work harder and use more fuel.

Product Description

With a straight-through design for maximum flow and power, Thrush Glasspack mufflers feature exclusive Continuous Roving Fiberglass technology that absorbs unwanted resonance while maintaining a powerful tone.

Product information

Technical Details

Brand ‎Thrush
Item dimensions L x W x H ‎29.25 x 6 x 5.5 inches
Vehicle Service Type ‎Truck
Item Weight ‎5.5 Pounds
Configuration ‎3 5 inch
Shape ‎Straight-through
Inlet Connection Size ‎2.5 Inches
Outlet Connection Size ‎2.5 Inches
UPC ‎086387242141
Manufacturer ‎Tenneco (Dynomax, Walker, Thrush)
Global Trade Identification Number ‎00086387242141
OEM Part Number ‎24214
Item Weight ‎5.5 pounds
Product Dimensions ‎29.25 x 6 x 5.5 inches
Item model number ‎24214
Is Discontinued By Manufacturer ‎No
Exterior ‎Machined
Manufacturer Part Number ‎24214

Additional Information

ASIN B00029J3KM
Customer Reviews
4.6 out of 5 stars 1,524 ratings

4.6 out of 5 stars
Best Sellers Rank
Date First Available November 23, 2005

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here. [PDF 99 KB]

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Thrush Glasspack Deep Performance Tone Inlet 2.5 Pipe Connection Outlet 2.5 Pipe


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What's in the box

  • One exhaust muffler with 2.5 inch inlet/outlet
  • Customer reviews

    4.6 out of 5 stars
    1,524 global ratings

    Customers say

    Customers praise the muffler's sound quality, noting it eliminates high-pitch noise and makes their vehicles sound like trucks. The product is well-made, easy to install, and offers good value. They appreciate its performance, perfect fit, and noise reduction capabilities, with one customer specifically mentioning it keeps cabin noise down effectively.

    158 customers mention "Sound quality"135 positive23 negative

    Customers like the muffler's sound quality, noting it produces a nice rumble without high-pitched noise and makes their vehicles sound like trucks. One customer mentions it's quieter inside the car.

    "It looks good, sounds great. I had a straight pipe with no resonator. This was used in it's place. Much quieter now but also gave it a nice sound." Read more

    "Sounds great. But not too loud, exactly what I wanted out of a muffler this size" Read more

    "Great muffer great sound Jeep wj 4.7 8 cilinder sound amazing" Read more

    "Sounds good on my V8 4runner hollowed out all three cats running to this to a down pipe before the rear diff sounds good just quieter than expected..." Read more

    56 customers mention "Quality"55 positive1 negative

    Customers appreciate the quality of the muffler, describing it as a great glasspack with good construction.

    "Arrived and worked as described. Good quality. Nice product, I would purchase again" Read more

    "...Great product with a great price." Read more

    "Good muffler.it sounds pretty good on my 4.3 .it's strait piped other than this muffler.when it breaks in I'm sure it will really sound good" Read more

    "I wanted a little bit louder. But it's good quality!" Read more

    33 customers mention "Ease of installation"31 positive2 negative

    Customers find the muffler easy to install, with one customer noting it slipped on with ease and another mentioning successful installation on a 2002 Pathfinder.

    "...It was easy to install and it definitely makes the truck louder and you can hear when he comes up the driveway that he is home...." Read more

    "...I like this and plan to add one to my other vehicle. Easy install and definite sound improvement, FYI it has a nice tone but definitely will not..." Read more

    "Easy installation I had it on my truck within about 20-30 minutes. Including driving up to the local auto part store for clamps. Sounds great" Read more

    "...It was super easy to install and I love the sound. Only thing I didn't receive was the Thrush bird sticker, ( envelope was empty )...." Read more

    33 customers mention "Value for money"33 positive0 negative

    Customers find the muffler to be a good value, describing it as a cost-effective way to enhance their car's sound.

    "...Just slide them on and weld ,No problem. A great price and quick shipping. Would be a good purchase to anyone looking for good quality glasspacks...." Read more

    "Great price. Adds that hotrod sound to any V8." Read more

    "good price , good quality" Read more

    "Good value..." Read more

    23 customers mention "Performance"22 positive1 negative

    Customers are satisfied with the muffler's performance, with one customer noting it works as effectively as a straight pipe muffler.

    "...it’s made for muscle cars I still put it on my Inline 4 engine and works great." Read more

    "Works great. Easy install and made my truck much louder with great tone." Read more

    "Worked great had to weld adapter but thats fine. Sounds good no high pitch noise" Read more

    "...with a classic rumble pop of a cherry bomb glass pack, works as a straight pipe muffler with loud enough but still legal sounding for a v8" Read more

    21 customers mention "Build quality"20 positive1 negative

    Customers praise the muffler's solid build quality.

    "...then quiet again reminds me of a magnaflow sounds great works well and cheap" Read more

    "...it on the f150 it was meant for but the quality looked solid and well made." Read more

    "Thrush, made in the USA, well built, great design, good performance." Read more

    "Excellent, great sound, and well constructed" Read more

    20 customers mention "Fit"20 positive0 negative

    Customers find that the muffler fits perfectly, with one customer noting that the 2.5 inch pipe aligns well inside the muffler, and another mentioning it works well with a 4 link rear suspension.

    "Very mellow,good sounding muffler,and not too loud. Perfect fit for my 1999 Ford F150 4wd." Read more

    "sounds great fit perfect" Read more

    "Good price perfect fit" Read more

    "Loved it. Sounded great. Fit perfect" Read more

    15 customers mention "Noise level"12 positive3 negative

    Customers report that the muffler effectively reduces cabin noise, with one customer noting it's barely noticeable at idle, and another mentioning there's no drone at highway speeds.

    "...What a sound, and no drone, wow! Well, maybe not if your behind me!!!" Read more

    "...It is actually quieter than I thought it would be. No drone on the highway. Idle just has a small rumble and if you floor it she opens up...." Read more

    "...overall sound of flowmaster better but with these there's no drone at highway speeds and for half the price these are great...." Read more

    "...They sound great when you put your foot in it, but not so great at an idle or low rpms. I may have simply chose the wrong style...." Read more

    Works, deep tone on a V8
    5 out of 5 stars
    Works, deep tone on a V8
    Bought this to take the place of a factory resonator which rusted out and started to leak. This fit perfectly in its place. The tone of the exhaust is deeper, with a slight increase in noise over stock, however I still have the oem muffler in place. The Thrush muffler cut out the rasp that I was getting when I had a straight pipe in as a temp fix. This is much better. Hoping the packing will last for several years. Note that your results may vary, a shorter glasspack will be louder, and have a raspier tone than a longer one.
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    Top reviews from the United States

    • Reviewed in the United States on June 8, 2025
      Way quieter than I thought mellow low growl then quiet again reminds me of a magnaflow sounds great works well and cheap
    • Reviewed in the United States on August 23, 2022
      I figured I would get something a little louder for my old truck and settled on this. I did not know you could get a muffler for this cheap (~30USD), but here we are. I was expecting this to be louder (~30 inch version) than it was on my 360FE, but its fairly quiet all things considered. I have not way to gauge noise, but I could drive though a neighborhood at 2AM without fear of upsetting the neighbors. It has discolored a bit after driving it and it smelt pretty bad on the first few trips. It may have also helped my MPG a slight bit, but nothing noticeable. Maybe .2-.5 MPG improvement.
      Overall I am happy. I think my truck sounds better than what the stock muffler had to offer, and with less rust and carbon too!
      4 people found this helpful
      Report
    • Reviewed in the United States on October 19, 2023
      Bought this to take the place of a factory resonator which rusted out and started to leak. This fit perfectly in its place. The tone of the exhaust is deeper, with a slight increase in noise over stock, however I still have the oem muffler in place. The Thrush muffler cut out the rasp that I was getting when I had a straight pipe in as a temp fix. This is much better. Hoping the packing will last for several years. Note that your results may vary, a shorter glasspack will be louder, and have a raspier tone than a longer one.
      Customer image
      5.0 out of 5 stars
      Works, deep tone on a V8

      Reviewed in the United States on October 19, 2023
      Bought this to take the place of a factory resonator which rusted out and started to leak. This fit perfectly in its place. The tone of the exhaust is deeper, with a slight increase in noise over stock, however I still have the oem muffler in place. The Thrush muffler cut out the rasp that I was getting when I had a straight pipe in as a temp fix. This is much better. Hoping the packing will last for several years. Note that your results may vary, a shorter glasspack will be louder, and have a raspier tone than a longer one.
      Images in this review
      Customer image
      2 people found this helpful
      Report
    • Reviewed in the United States on September 15, 2023
      Bought to replace the improperly installed Flowmaster on my wife's 6cyl Ford Ranger. Replaced it with this and a standard design exhaust pipe, and while it still has the deep tone, it is not as obnoxious driving around. This lowered the volume a few DB and by adding back the tailpipe, moved that sound to the back of the truck. 95% of the flow of an open header and only 80% of the volume (I'm making those numbers up, but that's what my ears are telling me, so I'll just keep believing it.)

      NOTE: here is the secret to a great tone boys and girls - the longer the better! I purposely bought the longest glasspack that would fit in the system. The longer the pack, the lower the note. Look at musical instruments - the longer the pipe, the lower the note. A glass pack has the same amount of restriction, regardless of length - diameter and bends are restrictions.

      YMMV
      8 people found this helpful
      Report
    • Reviewed in the United States on August 10, 2025
      The media could not be loaded.
      Heat started flaking and peeling the paint of the ends but sounds great on my 2010 fusion sport
    • Reviewed in the United States on July 1, 2025
      I used them when I was a kid and I still use it because they Rock
    • Reviewed in the United States on June 26, 2022
      This glasspack is the same type I used as a teenager with limited funds. I'm now 59 and can afford what I want but I remembered the sound the Thrush glasspacks gave me and figured why not. It was super easy to install and I love the sound. Only thing I didn't receive was the Thrush bird sticker, ( envelope was empty ). Great product with a great price.
      Customer image
      5.0 out of 5 stars
      What I remembered.

      Reviewed in the United States on June 26, 2022
      This glasspack is the same type I used as a teenager with limited funds. I'm now 59 and can afford what I want but I remembered the sound the Thrush glasspacks gave me and figured why not. It was super easy to install and I love the sound. Only thing I didn't receive was the Thrush bird sticker, ( envelope was empty ). Great product with a great price.
      Images in this review
      Customer image
      9 people found this helpful
      Report
    • Reviewed in the United States on December 13, 2024
      The media could not be loaded.
      Has a great low growl to it and the bubbling is amazing! I love the vintage sound, it’s almost as loud as my 1979 Camaro!! The volume is perfect and not loud enough to disturb the neighbors, but just loud enough to have some fun!
      One person found this helpful
      Report

    Top reviews from other countries

    Translate all reviews to English
    • majid
      1.0 out of 5 stars To loud!
      Reviewed in Saudi Arabia on March 27, 2021
      To loud!!
      Dont buy
    • Cliente de Amazon
      5.0 out of 5 stars Lo que esperaba
      Reviewed in Mexico on July 2, 2019
      Excelente
    • Don Edwards
      5.0 out of 5 stars very good muffler for the 4" side pipes on my car
      Reviewed in Canada on June 27, 2024
      these mufflers fit nicely in my 4" side pipes, and gave the car a deep tone and was quite a bit quieter that what I had. nice product
    • Esdras Montoya
      4.0 out of 5 stars Old School
      Reviewed in Mexico on February 19, 2024
      Esperaba un sonido mucho más exagerado cerca a traer tubería directa pero son bastante callados, al acelerar es cuando realmente suenan, en relenti el sonido es bastante callado y suena hasta stock están genial para escuchar música cómodamente pero que ruja cuando lo aceleras
      UPDATE: Corté la tubería hasta donde termina el resonador (previamente tenia tubería hasta atrás del carro) es un sonido bastante bajo siento yo para ser un glass pack pero curiosamente si hay bastante drone o ruido dentro de la cabina como el que habría con un mofle o resonador mucho mas ruidoso, igualmente diría que esta bien por el precio pero si buscas algo ruidoso, este no es el indicado, es un glass pack cómodo para un auto del diario solamente, ni tanto ruido ni poco
      Report
    • Old Bear
      5.0 out of 5 stars Sounds like my teen years
      Reviewed in Canada on April 23, 2024
      I installed this on my 1981 Chev square body as the original (or one that was on it) muffler was broken. This one fit in with some modifications to the tailpipe. Sounds great and reminds me of my old truck and car from the 90s. Nice tone at idle and a great snap-rip when you're into the throttle.

    Product Summary: Thrush Glasspack Deep Performance Tone Inlet 2.5 Pipe Connection Outlet 2.5 Pipe

    From Thrush

    4.6 out of 5 stars, 1,524 ratings

    Customer reviews

    50+ bought in past week

    Price

    One-time purchase: $28.89 12% Savings

    List Price: $32.99

    Purchasing options

    Other sellers

    Other sellers

    About this Item

    • VINTAGE SOUND -- Delivers a powerful tone that is ideal for muscle cars, trucks and classic vehicles
    • PREMIUM ACOUSTIC CONTROL -- Exclusive Continuous Roving Fiberglass (CRF) technology absorbs unwanted interior resonance
    • ENGINEERED TO LAST -- Durable heavy-gauge steel shell with high-gloss red powder-coat finish
    • SUPERIOR PERFORMANCE -- Straight-through design for maximum flow and power
    • FLEXIBLE SOLUTION -- Customizable design offered in a variety of styles and sizes for universal fitment (may require specialized fabrication and/or welding)
    • SPECS -- Available in 3.5-in. or 4-in. body; offered in a variety of overall lengths and inlet/outlet size configurations; see product specifications for more information
    • BUY WITH CONFIDENCE -- Comes with Thrush's 90-day limited warranty

    Product Description

    With a straight-through design for maximum flow and power, Thrush Glasspack mufflers feature exclusive Continuous Roving Fiberglass technology that absorbs unwanted resonance while maintaining a powerful tone.

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