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Muffler, Flowmaster, 40 Series, 2-1/4", Offset Inlet/Outlet

Vehicle Specific fits 29 models
0 Reviews
Part# CH26455
You Save $10.96
Low Stock
Only a few left for immediate delivery

OEM replacement

Gain 10 to 15 horsepower to the rear wheels by adding this high-performance muffler. Manufactured in the USA using the highest quality materials and the latest technology—the standard in high-performance exhaust. The “Delta Flow” muffler has a milder tone that generates a powerful sound outside the vehicle with a lower interior resonance, while improving torque and horsepower. This extreme high-flow muffler will give your vehicle that powerful muscle car sound that you are looking for.


  • NOTE1: I= inlet and O= outlet. NOTE2: These high-performance items are not eligible for any further discounts or promotional pricing.
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

Vehicle Fitment

Make & Model Year Range Application Details
Buick Grand National 82 2-1/4" I/O
Buick Grand National 84-87 2-1/4" I/O
Buick Regal 78-87 2-1/4" I/O
Buick Riviera 63-76 2-1/4" I/O (2 chamber)
Buick Skylark 61-72 2-1/4" I/O
Buick T-Type 83-87 2-1/4" I/O
Cadillac 60 Special 38-53 2-1/4" I/O
Cadillac Calais 40-64 2-1/4" I/O
Cadillac DeVille 54-93 2-1/4" I/O
Cadillac Eldorado 53-93 2-1/4" I/O
Cadillac Fleetwood 54-93 2-1/4" I/O
Cadillac Series 60 39-51 2-1/4" I/O
Cadillac Series 61 39-51 2-1/4" I/O
Cadillac Series 62 40-64 2-1/4" I/O
Cadillac Series 63 39-51 2-1/4" I/O
Cadillac Series 65 40-64 2-1/4" I/O
Cadillac Series 70 36-53 2-1/4" I/O
Cadillac Seville 76-04 2-1/4" I/O
Chevrolet Chevelle 64-77 2-1/4" I/O
Chevrolet El Camino 64-88 2-1/4" I/O
Chevrolet Malibu 78-83 2-1/4" I/O
Chevrolet Monte Carlo 70-88 2-1/4" I/O
Oldsmobile Cutlass 61-77 2-1/4" I/O
Pontiac Bonneville 55-77 2-1/4" I/O
Pontiac Catalina 55-77 2-1/4" I/O
Pontiac Grand Prix 62-77 2-1/4" I/O
Pontiac GTO 61-74 2-1/4" I/O
Pontiac LeMans 61-74 2-1/4" I/O
Pontiac Tempest 61-74 2-1/4" I/O
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Muffler, Flowmaster, 40 Series, 2-1/4
Flowmaster Muffler, Flowmaster, 40 Series, 2-1/4", Offset Inlet/Outlet