Mufflers for 1977 Pontiac Firebird
18 parts that fit, every brand, real ship dates.
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18 parts that fit, every brand, real ship dates.
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Flowmaster
Flowmaster 3 IN(O)/OUT(O) 50 Series DF Muffler
Regular price $173.95 USDRegular price List$195.95 USDSale price $173.95 USDShips from manufacturerFree shippingPay over time with Shop PaySale -
Flowmaster
Flowmaster 2.5in.IN(D)/OUT(D) 80 Series Muffler
Regular price $249.95 USDRegular price List$281.95 USDSale price $249.95 USDIn stockFree shippingPay over time with Shop PaySale -
Flowmaster
Flowmaster 3 IN(O)/OUT(O) Super 44 Series Muffler
Regular price $137.95 USDRegular price List$155.95 USDSale price $137.95 USDShips from manufacturerFree shippingSale -
Flowmaster
Flowmaster 3 IN(O)/OUT(O) 40 Series DF Muffler
Regular price $149.95 USDRegular price List$168.95 USDSale price $149.95 USDShips from manufacturerFree shippingSale -
Flowmaster
Flowmaster 2.5IN(O)/OUT(O) 50 Series DF Muffler
Regular price $173.95 USDRegular price List$195.95 USDSale price $173.95 USDShips from manufacturerFree shippingPay over time with Shop PaySale -
Flowmaster
Flowmaster 2.25IN(O)/OUT(O) 50 Series DF Muffler
Regular price $173.95 USDRegular price List$195.95 USDSale price $173.95 USDShips from manufacturerFree shippingPay over time with Shop PaySale -
Flowmaster
Flowmaster 2.25 IN(O)/OUT(O) Super 44 Series Muffler
Regular price $137.95 USDRegular price List$155.95 USDSale price $137.95 USDShips from manufacturerFree shippingSale -
Flowmaster
Flowmaster 2.25 IN(O)/OUT(O) 40 Series DF Muffler
Regular price $160.95 USDRegular price List$181.95 USDSale price $160.95 USDShips from manufacturerFree shippingPay over time with Shop PaySale -
Flowmaster
Flowmaster 2 IN(O)/OUT(O) 40 Series DF Muffler
Regular price $149.95 USDRegular price List$168.95 USDSale price $149.95 USDShips from manufacturerFree shippingSale -
Flowmaster
Flowmaster 2.5 IN(O)/Dual OUT 80 Series Muffler
Regular price $180.95 USDRegular price List$203.95 USDSale price $180.95 USDShips from manufacturerFree shippingPay over time with Shop PaySale -
Flowmaster
Flowmaster 3 IN(O)/OUT(O) Super 44 SS Muffler
Regular price $139.95 USDRegular price List$157.95 USDSale price $139.95 USDShips from manufacturerFree shippingSale -
Flowmaster
Flowmaster 2.5IN(O)/Dual OUT 80 Series SS Muffler
Regular price $188.95 USDRegular price List$212.95 USDSale price $188.95 USDShips from manufacturerFree shippingPay over time with Shop PaySale -
Flowmaster
Flowmaster 2.25 IN(O)/OUT(O) 50 Series DF SS Muffler
Regular price $188.95 USDRegular price List$212.95 USDSale price $188.95 USDShips from manufacturerFree shippingPay over time with Shop PaySale -
Flowmaster
Flowmaster 2.25 IN(O)/OUT(O) Super 44 SS Muffler
Regular price $139.95 USDRegular price List$157.95 USDSale price $139.95 USDShips from manufacturerFree shippingSale -
Flowmaster
Flowmaster 3IN (O)/OUT (O) 40 Series Muffler
Regular price $101.95 USDRegular price List$114.95 USDSale price $101.95 USDIn stockFree shippingSale -
Flowmaster
Flowmaster 2.25 IN(O)/OUT(O) DELTA 40 SS Muffler
Regular price $165.95 USDRegular price List$186.95 USDSale price $165.95 USDMade to orderFree shippingPay over time with Shop PaySale -
Flowmaster
Flowmaster 2.25IN(O)/OUT(O) 40 Series Muffler
Regular price $101.95 USDRegular price List$114.95 USDSale price $101.95 USDIn stockFree shippingSale -
Flowmaster
Flowmaster 2.5 IN(O)/2.5 OUT(O) Super 10 SS Muffler
Regular price $101.95 USDRegular price List$114.95 USDSale price $101.95 USDIn stockFree shippingSale
1977 Pontiac Firebird mufflers: questions and answers
What mufflers fit the 1977 Pontiac Firebird?
18 mufflers here are listed by their manufacturers for the 1977 Pontiac Firebird, from Flowmaster, priced from $101 to $250.
Which ones can ship to California?
All 18 can ship to a California address (no CARB restriction).
Which ones ship fastest?
4 are in stock and ship in 1-2 business days. Every other part shows its ship date on its page before you order.
How loud are they?
By the manufacturers' own sound ratings: 5 aggressive. Use the Sound filter at the top of the page. Parts without a rating are ones whose manufacturer does not rate the series.