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Flowmaster 50 Series™ Delta Flow Muffler 942451

Flowmaster 50 Series™ Delta Flow Muffler 942451
Flowmaster 50 Series™ Delta Flow Muffler 942451Flowmaster 50 Series™ Delta Flow Muffler 942451
$181.99 ea
NEWARRIVING SOONEstimated Ship Date 08/24/2021 (If Ordered Today)179 available from HOLLEY PERFORMANCE PRODUCTS as of 08/05/2021
Model: 3024404
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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The three chamber design utilizes Flowmaster's patented Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Features:
  • Durable Fully Welded 16ga Aluminized Steel
  • 3 Year Limited Warranty
  • Mild to Moderate Exterior Exhaust Tone
  • Minimal Interior Resonance
  • Excellent Choice For Street Rods Cars and Trucks
  • Improved HP/TQ and Potential Mileage Improvement
  • Race Proven Patented Delta Flow® Technology
  • Premium Flowmaster Quality
Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations
Installation Notes:
Universal Muffler - Some adaptation may be required.

Downloads:

Download Name File Size
fm_warranty_general.pdf88.58KB
FM_Warranty_General.pdf88.58KB
NAFTA_COO-2013.pdf105.94KB

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine Fitment Notes
Mercury Cougar Base 1969 7.0L / 428 / V8
6.4L / 390 / V8
5.8L / 351 / V8
5.0L / 302 / V8
2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar Base 1970 7.0L / 429 / V8
7.0L / 428 / V8
6.4L / 390 / V8
5.8L / 351 / V8
2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar Boss 302 1969 5.0L / 302 / V8 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar Boss 302 1970 5.0L / 302 / V8 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar Boss 429 1969 7.0L / 429 / V8 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar Boss 429 1970 7.0L / 429 / V8 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar Cobra Jet 1969 7.0L / 428 / V8 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar Cobra Jet 1970 7.0L / 429 / V8
7.0L / 428 / V8
2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar XR-7 1969 7.0L / 428 / V8
6.4L / 390 / V8
5.8L / 351 / V8
5.0L / 302 / V8
2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar XR-7 1970 7.0L / 429 / V8
7.0L / 428 / V8
6.4L / 390 / V8
5.8L / 351 / V8
2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar 1967 6.4L / 390 / V8
4.7L / 289 / V8
2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar 1968 7.0L / 428 / V8
7.0L / 427 / V8
6.4L / 390 / V8
4.7L / 289 / V8
5.0L / 302 / V8
2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar 1971 7.0L / 429 / V8
5.8L / 351 / V8
2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar 1972 5.8L / 351 / V8 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar 1973 7.5L / 460 / V8
6.6L / 400 / V8
5.8L / 351 / V8
2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required
Mercury Cougar 1974 7.5L / 460 / V8
5.8L / 351 / V8
2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel
Not Direct Fit-Some Adaptation Required

Specifications:

Automotive Item Grade High Performance
Body Height 4.000 in.
Body Height (in) 4
Body Length 17.000 in.
Body Length (in) 17
Body Width 9.750 in.
Body Width (in) 9.75
California Proposition 65 Required No
Color Black
Emission Code 5
Finish Paint
Fitment Universal
Inlet Connection Type Pipe
Inlet Diameter 2.250 in.
Inlet Diameter (in) 2.25
Inlet Inside Diameter 2.250 in.
Inlet Outside Diameter 2.250 in.
Inlet Position Offset
Inlet Type Single Offset
Main Piping Diameter 2.250 in.
Material Aluminized Steel
Mount Type Uses New Hangers (Not Included)
Muffler Series 50 Series Delta Flow
Muffler Type Reflection
Outlet Connection Type Pipe
Outlet Diameter 2.500 in.
Outlet Diameter (in) 2.25
Outlet Outside Diameter 2.250 in.
Outlet Position Center
Outlet Type Single Center Outlet
Overall Length 23.000 in.
Overall Length (in) 23
Part Type Exhaust Muffler
Reversible No
Shape Oval
Sound Level Moderate
Tip Quantity 0
Type of Muffler Chambered
Vehicle Type 4/6 CYL Engine
Warranty Time 36 Months

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