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Part fits the following years1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977


    Muffler, Super 40-Series 2-1/2" I/O Fits 1964-77 Chevelle+ 20 other models

    Retail Price $115.95 You Save $10.96
    OPGI Price$104.99
    Part# CH26453
    Mfg# 952548
    Low Stock
    Only a few left available for immediate delivery

    Available in three different sized inlets and outlets.

    For the most aggressive, deep sounding muffler available in the Flowmaster line, the “Super 40-Series” muffler is the one. This two-chamber muffler has that classic deep tone with performance to match. It comes in 2-1/4", 2-1/2" and 3" diameter offset inlet and outlet to fit all A-Body applications. These mufflers have a case dimension of 5" tall with a 10" width. Get that muscle car sound with these Flowmaster Super 40-Series mufflers.

    • I = inlet and O = outlet.
    • These high-performance items are not eligible for any further discounts or promotional pricing.
    • High Performance, designed to improve performance.
    • Find in OPGI's 2018 Chevelle Catalog page 555.
    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 2-1/2" I/O
    Buick Regal1978-1987 2-1/2" I/O
    Buick Riviera1963-1976 2-1/2" I/O
    Buick Skylark1961-1972 2-1/2" I/O
    Buick T-Type1978-1987 2-1/2" I/O
    Cadillac DeVille1954-1976 2-1/2" I/O 40-Series
    Cadillac Eldorado1954-1976 2-1/2" I/O 40-Series
    Cadillac Fleetwood1954-1976 2-1/2" I/O 40-Series
    Cadillac Series 62/65/Calais1954-1976 2-1/2" I/O 40-Series
    Chevrolet Chevelle1964-1977 2-1/2" I/O
    Chevrolet Corvair1960-1969 2-1/2" I/O
    Chevrolet El Camino1964-1977 2-1/2" I/O
    Chevrolet El Camino1978-1988 2-1/2" I/O
    Chevrolet Malibu1978-1988 2-1/2" I/O
    Chevrolet Monte Carlo1970-1977 2-1/2" I/O
    Chevrolet Monte Carlo1978-1988 2-1/2" I/O
    Oldsmobile Cutlass/4421961-1977 2-1/2" I/O
    Pontiac Bonneville1959-1977 2-1/2" I/O
    Pontiac Catalina1959-1977 2-1/2" I/O
    Pontiac Grand Prix1959-1977 2-1/2" I/O
    Pontiac GTO1961-1973 2-1/2" I/O
    Pontiac LeMans1961-1973 2-1/2" I/O
    Pontiac Tempest1961-1973 2-1/2" I/O

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