2014-2023
1984-2001
Installation Time
(approx) 1 Hour
Difficulty Level:
Light to Moderate mechanical skill required.
Guaranteed 12/24 Delivery Still Available see item page for details! available on most items - Details
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Flowmaster 40 Series Delta Flow Center/Offset Oval Muffler; 2.25-Inch Inlet/2.25-Inch Outlet (Universal; Some Adaptation May Be Required)Find parts that fit my vehicle
Item XJ4154
$120.56
3 Reviews
On Sale
-10% $120.56 each Was $133.95
Ship to: 43215
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Natural Tone; Reduced Interior Noise
- Maximizes Torque and Horsepower
- Offset Oval, Chambered Muffler Design
- 2.25-Inch Aluminized Steel Construction
- Standard Outlet Style; No Tip
- Clamp Installation
- Sold Individually
- Universal Fitment; Modifications Will Be Required
| Brand | Flowmaster |
| Muffler Inlet Size | 2.25 Inch |
Description
Flowmaster Sound. Get an aggressive, more natural rumble without impacting your performance thanks to the Flowmaster 40 Series Delta Flow Center/Offset Oval Muffler. This exhaust upgrade for 1979-2004 Mustangs uses a two-chambered design and Flowmaster's patented Delta Flow technology to achieve better scavenging, giving you better performance while reducing cabin noise.
Increases Torque/Horsepower. Is your stock muffler robbing your 'Stang's performance? The two-chamber, precision-deflector design of the Flowmaster 40 Series Delta Flow Center/Offset Oval Muffler supercharges your exhaust, giving you a marked increase in torque and horsepower.
Tough Construction. The Flowmaster 40 Series Delta Flow Center/Offset Oval Muffler is crafted from durable 16-gauge aluminized steel and is completely MIG-welded for the ultimate in strength and durability. 40 Series Mufflers also don't have any packing, so there's nothing to blow out.
Modifications Required. This Muffler was designed to be used on multiple applications, as it is not a direct fit replacement part. In order to install this Muffler properly on your vehicle, some modifications to the exhaust system will be required.
Application. The Flowmaster 40 Series Delta Flow Center/Offset Oval Muffler is built specifically to fit all 1979-2004 Mustangs, excluding 1999-2004 Cobras.
Flowmaster 942442
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Muffler
4.7
Customer Reviews (3)
Reviews of Flowmaster Exhaust products have an average rating of 4.5 out of 5
Questions & Answers
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