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USD 189.99
Part #: AEAT4040XL

Aero Exhaust AT4040XL Aero-Turbine Resonated Performance Muffler

Vehicle Fitment:
Universal - 4" Inlet/Outlet x 26" Length
Part #: AEAT4040XL
★★★★★ ★★★★★ 18 Reviews
$189.99
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Description

The Aero Exhaust AT4040XL Aero-Turbine Resonated Performance Muffler gives your truck an aggressive, yet more mild tone due to the resonated design. Built for high-output diesel engines, the Aero-Turbine Performance Mufflers feature a patented airfoil technology that increases horsepower, torque, flow and also reduces temperatures. The AT4040XL is the only performance muffler that will give you the performance of a full system at a fraction of the cost. 

Most vehicles have extreme restrictions on exhaust airflow, which increases exhaust temperatures and decreases engine longevity. The Aero-Turbine breakthrough, based on thermodynamics and jet engine technology, literally accelerates the flow of exhaust away from the engine increasing performance and engine efficiency. Featuring a T304 stainless steel construction, this resonator has a high-temperature ceramic packing material to help absorb sound waves.

Features:
  • Increased Torque
  • Better Fuel Economy
  • Improved Horsepower 
  • Reduced Temperatures 
  • Resonated Design - For Milder Tone 
Specifications:
Resonated Muffler
4" Inlet/Oulet 
26" Overall Length 
Center Inlet/Outlet

Specifications

  • MPN AT4040XL
  • SKU AEAT4040XL
  • ID 281
  • Manufacturer Name Aero Exhaust
  • Shipping Weight 7.00 lb.
  • Shipping Length 10 in.
  • Shipping Width 35 in.
  • Shipping Height 12 in.
  • Fuel Type Diesel / Gas
  • Warranty Info Manufacturers Lifetime
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
  • Internal L39R0

Reviews

★★★★★ ★★★★★
4.6/5 Stars out of 18 Reviews
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Verified Buyer
4040xl muffler
5
I put this on my 6.7 cummins and it made a world of difference! It sounds much deeper and throatier its the perfect sound if youre thinking about it go for it you wont regret it
Beautiful Muffler!
5
Very high quality! Wanted to take the edge off my duramax, definitely improved tone. Believe it or not, actually increased perceived power and bumped up mileage. Engine must like some back pressure. Would buy again for sure.
Verified Buyer
Awesome.
5
Very fast shipping, exactly as described, I reached out to ask if there were clamps included, they are not, I was told lap clamps are what I need. I had already ordered some in anticipation, installed the muffler in about an hour, sounds much quieter in the cab vs the straight pipe w/o a cat. I hear a bit of drone at 55, but it’s nice. The muffler is gorgeous, funny to say about a piece of metal, but it was superbly packaged and just a shiny, unblemished muffler. Kind of saddened me, that the rest of my exhaust is galvanized. 10/10, will definitely do business with XD, again. #1288729
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Questions and Answers

Is the length on this from flange to flange or is it just the muffler part?
View Staff Answer 
Answer
The measurement would be end-to-end.
Will this fit on a 2004 Holiday Rambler MotorHome with a Cummins 400HP ISL Diesel?
View Staff Answer 
Answer

The AERO EXHAUST AT4040XL AERO-TURBINE RESONATED PERFORMANCE MUFFLER is a universal muffler designed for 4” exhaust piping.

What is Body Diameter What is the body Diameter ?
View Staff Answer 
Answer

The AERO EXHAUST AT4040XL AERO-TURBINE RESONATED PERFORMANCE MUFFLER has the following measurements: 4" ID Inlet, 20" Body (6” Diameter), 4" ID Outlet w/ a 26" Overall Length.

Is the 4” Inlet/outlet an I.d. Or o.d.?
View Staff Answer 
Answer
4" ID (INLET & OUTLET)

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