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Flowmaster 43043 40 Series Chambered Muffler

Free shipping on orders over $29.99

$89.65

$ 35 .99 $35.99

In Stock

About this item

  • Durable fully welded 16 gauge aluminized steel
  • Aggressive Sound Exterior Exhaust Tone
  • Noticeable interior resonance
  • Excellent Street/Strip and Off Road application


The Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.


Z
2025-09-03 20:23:20
For the price I can't complain. Sounds good on my 6.8 excursion.
Timothy
2025-08-25 11:38:21
Sounds amazing on a Silverado with a cold air intake
Gerardo
2025-08-06 13:24:33
Great sound! I love the low growl it gives the truck!
C. Lake
2025-07-19 14:20:19
I puchased this muffler as I wanted the stock exhaust to be louder (95 Tahoe 5.7l). Seems to fit the bill. I have the stock tail pipe (2 3/4") on the output of the muffler and it sounds nice. The old muffler was comming apart and I figured why replace with stock, this put it loud enough to please me and quiet enough to please my wife. The muffler with a 1' section of 3" was pretty loud in the cab, that is why I kept the stock tailpipe.....
Justin R.
2025-07-10 17:00:52
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justin
2025-06-27 20:27:49
Wow, let me tell you about the Flowmaster 43043 40 Series Chambered Muffler - it's an absolute game-changer for anyone looking to take their ride to the next level! From the moment you start up your engine, you can feel the power and performance that this muffler brings to the table.It's like music to my ears every time I rev my engine with this bad boy installed. The deep, throaty growl is enough to send shivers down your spine and will have heads turning wherever you go.Not only does it sound amazing, but the performance gains are out of this world. The Flowmaster 43043 40 Series Chambered Muffler delivers a noticeable boost in horsepower and torque, giving your vehicle that extra oomph it needs to really stand out on the road.It's super easy to install, so you can have it on your car and be ready to hit the streets in no time. Trust me, once you experience the power and performance of the Flowmaster 43043 40 Series Chambered Muffler, you'll wonder how you ever drove without it. This muffler is a must-have for any car enthusiast looking to take their ride to the next level
V3ry5ick
2025-06-12 15:19:28
Dood! $65 for a real flowmaster?? For real?? Thanks Amazon! I appreciate ya!!
Maurice Cruz
2025-06-08 16:58:25
Great product.
Derek
2025-06-06 12:43:53
Nice
tanner
2025-05-01 11:34:16
Installed on my wife’s 2017 ram 1500, has the same offset as the stock muffler which made install very simple. I went to local muffler shop and got 24” of 3” exhaust tube with one end flared (trimmed off a few inches when i knew the exact measurement during install) and 3 exhaust clamps. Id recommend soaking the stock muffler inlet and outlet with WD 40 to loosen up the dirt and rust then just lay under the truck and boot the stock muffler, on inlet end, until it pops out (remember to remove exhaust hanger rubbers before hand or it with just keep bouncing on hangers). It sounds pretty good, not too loud.
Bobby D.
2025-03-30 12:10:11
Beau son....comparé a celui d'origine!
ROBERT KERBY
2025-02-08 11:45:18
We have not installed them yet but I'm sure they will work awesome
William Mair
2025-01-27 15:09:24
Very good sounds awesome easy to install put it on a single exhaust Dodge Ram. It's aggressive but not to much very mature sounding exhaust
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