Original Parts Group Logo
US & Canada Phone Number 1-800-243-8355
International Phone Number 1-562-594-1000
Select Your Vehicle Choose Your Vehicle for a Custom Shopping Experience
Part fits the following years1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976


    Muffler, Delta Flow 40 Series (2 Chamber) 2-1/4" I/O Fits 1959-77 Bonneville+ 22 other models

    Retail Price $115.95 You Save $10.96
    OPGI Price$104.99
    Part# CH26455
    Mfg# 942443
    Low Stock
    Only a few left available for immediate delivery

    More performance with a powerful sound.

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

    • I = inlet, O = outlet.
    • These high-performance items are not eligible for any further discounts or promotional pricing.
    • High Performance, designed to improve performance.
    California Prop 65 Icon 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 www.P65Warnings.ca.gov.

    Vehicle Fitment

    Make & ModelYear RangeApplication Details
    Buick Grand National1978-1987 2-1/4" I/O
    Buick Regal1978-1987 2-1/4" I/O
    Buick Riviera1963-1976 2-1/4" I/O (2 Chamber)
    Buick Skylark1961-1972 2-1/4" I/O
    Buick T-Type1978-1987 2-1/4" I/O
    Cadillac DeVille1938-1993 2-1/4" I/O
    Cadillac Eldorado1938-1993 2-1/4" I/O
    Cadillac Fleetwood1938-1993 2-1/4" I/O
    Cadillac Series 60 Special1938-1993 2-1/4" I/O
    Cadillac Series 60/61/631938-1993 2-1/4" I/O
    Cadillac Series 62/65/Calais1938-1993 2-1/4" I/O
    Cadillac Series 67/70/72/751938-1993 2-1/4" I/O
    Chevrolet Chevelle1964-1977 2-1/4" I/O
    Chevrolet El Camino1964-1977 2-1/4" I/O
    Chevrolet El Camino1978-1988 2-1/4" I/O
    Chevrolet Malibu1978-1988 2-1/4" I/O
    Chevrolet Monte Carlo1970-1977 2-1/4" I/O
    Chevrolet Monte Carlo1978-1988 2-1/4" I/O
    Oldsmobile Cutlass/4421961-1977 2-1/4" I/O
    Pontiac Bonneville1959-1977 2-1/4" I/O
    Pontiac Catalina1959-1977 2-1/4" I/O
    Pontiac Grand Prix1959-1977 2-1/4" I/O
    Pontiac GTO1961-1973 2-1/4" I/O
    Pontiac LeMans1961-1973 2-1/4" I/O
    Pontiac Tempest1961-1973 2-1/4" I/O

    Customer Reviews (0)

    Switch to Mobile Site »

    Original Parts Group

    Special Deals!
    Never Miss A Promotion
    If you see this, please contact your IT department and ask them to unblock www.opgi-static.com