HomeExhaust > MufflersWalker 18949 Exhaust Muffler - Right
Part #: 18949

Walker 18949 Exhaust Muffler - Right

SoundFX Direct Fit, Right
10 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$69.91Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
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*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
SoundFX Direct Fit, Right
Fitment: Chevrolet, Impala
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker SoundFX Direct Fit Exhaust Muffler 18949

The Walker SoundFX Direct Fit Exhaust Muffler 18949 is designed specifically for Chevrolet Impala models, providing a precise fit and reliable performance. This oval-shaped muffler features a durable aluminized steel body and is engineered to meet regular grade requirements for everyday driving conditions.

  • Specific fit for Chevrolet Impala
  • Oval body shape with 9-inch width and 7-inch height
  • Aluminized steel construction for corrosion resistance
  • 1.875-inch inlet inside diameter with offset pipe connection
  • Single inlet and outlet with 2.25-inch outlet diameter
  • Overall length of 32.5 inches and body length of 14 inches
  • Combination muffler type with offset inlet and outlet configuration

Detailed Product Description

The Walker SoundFX Direct Fit 18949 exhaust muffler is engineered to provide a direct replacement for the Chevrolet Impala exhaust system. Its oval-shaped body measures 9 inches in width and 7 inches in height, with a length of 14 inches, fitting precisely within the vehicle’s exhaust layout. The muffler features a single inlet and outlet, both offset to optimize exhaust flow and reduce backpressure. The inlet pipe connection has an inside diameter of 1.875 inches, while the outlet tip measures 2.25 inches in outside diameter, ensuring compatibility with the Impala’s exhaust piping. Constructed from aluminized steel, this muffler offers resistance to rust and corrosion, extending the service life under typical driving conditions. The combination muffler type balances sound attenuation and exhaust flow, maintaining vehicle performance while reducing noise.

Walker SoundFX Direct Fit Product Line

The SoundFX Direct Fit line by Walker focuses on providing vehicle-specific exhaust components that simplify installation and maintain factory sound characteristics. This product line is designed to offer a direct fit solution without the need for modifications, making it suitable for Chevrolet Impala owners seeking a reliable replacement muffler that aligns with original equipment specifications.

Common Applications and Problem Solving

  • Replacement for damaged or rusted mufflers on Chevrolet Impala
  • Reduction of excessive exhaust noise due to muffler wear
  • Restoration of proper exhaust flow and backpressure balance
  • Improvement of exhaust system durability with aluminized steel construction
  • Maintaining factory exhaust sound and performance characteristics

Installation Notes and Tips

Installation of the Walker SoundFX Direct Fit 18949 muffler requires compatibility with the Chevrolet Impala exhaust system. The offset inlet and outlet configuration should be aligned carefully to ensure proper fitment. It is recommended to inspect exhaust hangers and clamps during installation to secure the muffler firmly and prevent vibrations. Professional installation is advised to maintain exhaust system integrity and performance.

Quality Assurance and Warranty

Walker manufactures the SoundFX Direct Fit 18949 muffler with quality materials and precise engineering to meet OEM standards. The aluminized steel body provides corrosion resistance for extended durability. While specific warranty details are not provided, Walker products typically adhere to industry standards for quality and reliability.

BrandWalker
Part Number18949
PositionSoundFX Direct Fit, Right
Universal Or Specific FitSpecific
ShapeOval
Grade TypeRegular
Inlet Inside Diameter1.875
Body Width9
Inlet Quantity1
Outlet Quantity1
ReversibleNo
TunableNo
Overall Length32.5
Body Height7
Body Length14
Body MaterialSteel
FinishAluminized
Inlet 1 Inside Diameter1.875
Inlet 1 TypePipe connection
Inlet ConfigurationOffset
Inlet Offset1.625
Inlet TypePipe connection
Muffler TypeCombination
Outlet 1 Outside Diameter2.25
Outlet 1 TypeTip
Outlet ConfigurationOffset
Outlet Outside Diameter2.25
Outlet TypeTip

This part fits 10 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2011ChevroletImpala3.9LV6RightIf welded assembly, replace all required parts; SoundFX Direct Fit
2010ChevroletImpala3.9LV6RightIf welded assembly, replace all required parts; SoundFX Direct Fit
2009ChevroletImpala3.9LV6RightIf welded assembly, replace all required parts; SoundFX Direct Fit
2009ChevroletImpala5.3LV8RightIf welded assembly, replace all required parts; SoundFX Direct Fit
2008ChevroletImpala3.9LV6RightIf welded assembly, replace all required parts; SoundFX Direct Fit
2008ChevroletImpala5.3LV8RightIf welded assembly, replace all required parts; SoundFX Direct Fit
2007ChevroletImpala3.9LV6RightIf welded assembly, replace all required parts; SoundFX Direct Fit
2007ChevroletImpala5.3LV8RightIf welded assembly, replace all required parts; SoundFX Direct Fit
2006ChevroletImpala3.9LV6RightIf welded assembly, replace all required parts; SoundFX Direct Fit
2006ChevroletImpala5.3LV8RightIf welded assembly, replace all required parts; SoundFX Direct Fit

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

700451

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.