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🎸 Unleash the roar of classic muscle with Thrush Muffler – where vintage meets performance!
The Thrush Muffler Mellow Performance Tone features a tri-flow design that delivers authentic vintage hot rod sound, enhanced by premium fiberglass acoustic control to minimize unwanted resonance. Built with a durable aluminized-coated alloy steel shell and reversible flow design, it offers versatile installation options and a sleek silver finish embossed with the iconic Thrush logo. Available in multiple inlet/outlet sizes, this muffler is engineered for lasting performance and style, backed by a 90-day limited warranty.











| ASIN | B004VRS8RU |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #196,956 in Automotive ( See Top 100 in Automotive ) #49 in Automotive Performance Exhaust Mufflers #3,734 in Automotive Emission & Exhaust Products |
| Brand | Thrush |
| Brand Name | Thrush |
| Compatible with Vehicle Type | Car |
| Configuration | Classic |
| Customer Reviews | 4.4 out of 5 stars 324 Reviews |
| Global Trade Identification Number | 00086387176354 |
| Included Components | Per Item Description |
| Item Dimensions | 21.5 x 10.25 x 5 inches |
| Item Weight | 9.5 pounds |
| Item dimensions L x W x H | 21.5 x 10.25 x 5 inches |
| Manufacturer | Tenneco (Dynomax, Walker, Thrush) |
| Manufacturer Part Number | 17635 |
| Manufacturer Warranty Description | No Warranty |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Number | 17635 |
| Number of Items | 1 |
| OEM Equivalent Part Number | 17635 |
| Shape | Oval |
| UPC | 086387176354 |
| Vehicle Service Type | Car |
F**E
Great muffler and value
My application is a 454 in a 75 Nova. Dual exhaust, H pipe. The previous muffler setup was just too loud for the neighbors. It had a brutal drone. This setup (in my application) is definitely NOT a quiet stock type of sound. However, it did knock down the volume quite a bit. There is still a drone at ~1100 RPM and it seems quite loud... but it transitions out of this at highway RPMs. On the highway, I can hear the tires now, and I can have a normal conversation. If I had to describe it very simply, I would say that this is halfway between a quiet stock muffler and a 'straight through' super loud performance set up. I definitely did not notice any difference in performance. It doesn't seem restrictive or cause any problems vs. the straight through loud muffler set up. The 3" version I purchased allows the 3" pipe to slide in perfectly- which is awesome. It was really awesome that I did not have to wrestle the pipes into the muffler. I would strongly recommend this muffler as a great value.
J**F
What I was looking for
Worked fine for me. 1969 C10 427 bb 4l80E. Exits just behind the muffler in front of the rear axle. Nice sound. Quite a bit quieter than the Summit 2 chamber mufflers. Just what I was looking for.
G**K
As described
Works good, sounds good
W**N
Wish it was labeled inlet/outlet
otherwise a decent muffler. Went on very easily and is pretty quiet. Well see how long it holds out.
R**D
best product on the market
best product on the market
S**.
Great value!
Nice bark without the harshness of welded mufflers. I actually replaced a set of Flowmaster Delta 40’s with these Thrush mufflers on my rat rod. The pipes exit by the doors and the 40’s were just annoying at cruising speed. These particular thrush mufflers are for 3” exhaust pipe and do neck down to 2-1/2” inside but on a car like mine ultimate flow was not my concern and honestly I didn’t notice any power loss though I’m sure you’d see some on a Dyno. Good quality. They are made by Tenneco which also makes Dynomax and Cherry Bomb.
M**K
Lots of hush but with a good tone
This muffler is a lot of hush! I've ran my truck for 15 years with glass packs single chamber, dual chamber, dual exhaust, single exhaust, no muffler, and stock mufflers. This one in particular is fairly quiet but has a decent sound when on heavy throttle. Not a lot of highway drone as well, and there wont be that popping backfire noise when letting off the throttle. I like the sound of this one currently as I have been doing more highway miles lately. Running on a 95 F150 with 5.8L V8.
S**S
Sounds great
Why did you pick this product vs others?: We installed this on a 2016 Ram 1500. Cat’s & resonators are all stock. Just swapped the stock muffler for this. Sounds perfect, nice and melllow, but still sounds tough.
G**T
No drone. Love it
10/10! Running quietly on a 2004 Silverado 4.8L Get it welded right. No drone at all.
J**A
Es lo que esperaba
Excelente producto un poco ruidoso pero por el tamaño está excelente
I**S
Perfect
Ive been running an 3" AFE Cat back and 3" straight through muffler, and racing Cat on my !998 Jeep TJ 4.0 for about 8 years, sounds fantastic but the drone and highway noise had finally begun to wear me down (im getting older ). Spent a while looking for a decent replacement muffler so I could retain the 3" pipe and came across this, exactly the same length and dimensions and significantly reduced the drone but maintains a nice low rumble. Yes the internal dimension does reduce down but personally haven't noticed any difference in performance, Im sure this is done inside the muffler to allow for the bends, And the price with free prime shipping to Australia ... Amazing. Just purchased a second one incase I smash this on the trail!!!!! As you do !!!!!
M**Y
Not bad
It fit like it said it's a hush thrush like it said it sounds good it's all great
B**H
3" in and out. was able to tame a roudy 4cyl
this helped get rid of all the droning. still sounds great. still rips
Trustpilot
3 weeks ago
1 month ago