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Exhaust Muffler (Flowmaster) for 1967-1987 Buick, Chevrolet, & Pontiac NEW

$ 307 .82

Product Notes

⚠️ Most jobs typically require 2 of this item.
2.5 in. Dual Inlet/Outlet; Case Dimensions 4 in. x 9.75 in. x 18 in.; 24 in. Overall Length; Aluminized Steel
80 Series™ Cross-Flow Muffler
The 80 series is a cross-flow design for applications where the muffler is mounted transversely behind the rear end. Delivering an aggressive muscle car sound both inside and outside the vehicle, this is an excellent replacement for Camaros & Firebirds with transverse mufflers. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Brand: Flowmaster
Condition: New
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
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Specifications & Info


Attribute Value
Automotive Item Grade High Performance
Body Width 9.750 In.
Fitment Direct Oe Replacement
Inlet Connection Type Pipe
Inlet Diameter 2.500 In.
Inlet Inside Diameter 2.500 In.
Inlet Outside Diameter 2.500 In.
Inlet Position Dual
Main Piping Diameter 2.500 In.
Muffler Series 80 Series Crossflow
Muffler Type Reflection
Outlet Connection Type Pipe
Outlet Outside Diameter 2.500 In.
Outlet Position Dual
Sound Level Aggressive
Tip Quantity 0
WARNING CA Proposition 65 No

Vehicle Fitment Guide

This part fits the following vehicles:

Buick 1 model (tapclick to expand)(tapclick to hide)
Regal 1985-1987 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base Coupe 1985 - 1987 V6 3.8L RWD Automatic
Base Coupe 1985 - 1987 V8 5.0L RWD Automatic
Base Coupe 1985 V8 5.7L DIESEL RWD Automatic
GNX Coupe 1987 V6 3.8L Turbo RWD Automatic
Grand National Coupe 1985 - 1987 V6 3.8L Turbo RWD Automatic
Limited Coupe 1987 V6 3.8L Turbo RWD Automatic
Limited Coupe 1985 - 1987 V6 3.8L RWD Automatic
Limited Coupe 1985 V6 4.3L DIESEL RWD Automatic
Limited Coupe 1985 - 1987 V8 5.0L RWD Automatic
T-Type Coupe 1985 - 1986 V6 3.8L Turbo RWD Automatic
Chevrolet 3 models (tapclick to expand)(tapclick to hide)
Camaro 1967-1981 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base Convertible 1969 V8 5.0L RWD Automatic & Manual & U/K
Base Convertible 1969 V8 5.7L RWD Automatic & Manual & U/K
Base Convertible 1969 V8 7.0L RWD Automatic & Manual & U/K
Base Convertible 1968 - 1969 V8 5.4L RWD U/K
Base Convertible 1967 - 1969 L6 3.8L RWD Automatic & Manual & U/K
Base Convertible 1967 - 1969 L6 4.1L RWD Automatic & Manual & U/K
Base Convertible 1967 - 1969 V8 5.3L RWD Automatic & Manual
Base Convertible 1967 V8 5.3L RWD U/K
Base Convertible 1967 V8 6.5L RWD Automatic & Manual & U/K
Base Coupe 1980 V6 3.8L RWD Automatic & Manual
Base Coupe 1980 V8 4.4L RWD Automatic & Manual
Base Coupe 1971 - 1972 V8 6.6L RWD Automatic & Manual & U/K
Base Coupe 1970 - 1979 L6 4.1L RWD Automatic & Manual
Base Coupe 1970 - 1974 L6 4.1L RWD U/K
Base Coupe 1970 - 1973, 1976 - 1980 V8 5.0L RWD Automatic & Manual
Base Coupe 1970 - 1973 V8 5.0L RWD U/K
Base Coupe 1970 - 1980 V8 5.7L RWD Automatic & Manual
Base Coupe 1970 - 1974 V8 5.7L RWD U/K
Base Hardtop 1969 V8 5.0L RWD Automatic & Manual & U/K
Base Hardtop 1969 V8 5.7L RWD Automatic & Manual & U/K
Base Hardtop 1969 V8 7.0L RWD Automatic & Manual & U/K
Base Hardtop 1968 - 1969 V8 5.4L RWD U/K
Base Hardtop 1967 - 1969 L6 3.8L RWD Automatic & Manual & U/K
Base Hardtop 1967 - 1969 L6 4.1L RWD Automatic & Manual & U/K
Base Hardtop 1967 - 1969 V8 5.3L RWD Automatic & Manual
Base Hardtop 1967 V8 5.3L RWD U/K
Base Hardtop 1967 V8 6.5L RWD Automatic & Manual & U/K
Berlinetta Coupe 1980 - 1981 V6 3.8L RWD Automatic & Manual
Berlinetta Coupe 1980 - 1981 V8 4.4L RWD Automatic & Manual
Berlinetta Coupe 1979 L6 4.1L RWD Automatic & Manual
Berlinetta Coupe 1979 - 1981 V8 5.0L RWD Automatic & Manual
Berlinetta Coupe 1979 - 1981 V8 5.7L RWD Automatic & Manual
LT Coupe 1975, 1977 - 1978 L6 4.1L RWD Automatic & Manual
LT Coupe 1973, 1976 - 1978 V8 5.0L RWD Automatic & Manual
LT Coupe 1973 V8 5.0L RWD U/K
LT Coupe 1973, 1975 - 1978 V8 5.7L RWD Automatic & Manual
LT Coupe 1973 - 1974 V8 5.7L RWD U/K
LT Rally Sport Coupe 1977 - 1978 L6 4.1L RWD Automatic & Manual
LT Rally Sport Coupe 1976 - 1978 V8 5.0L RWD Automatic & Manual
LT Rally Sport Coupe 1976 - 1978 V8 5.7L RWD Automatic & Manual
RS Convertible 1969 V8 5.0L RWD Automatic & Manual & U/K
RS Convertible 1969 V8 5.7L RWD U/K
RS Convertible 1969 V8 7.0L RWD Automatic & Manual & U/K
RS Convertible 1968 - 1969 L6 3.8L RWD U/K
RS Convertible 1968 - 1969 L6 4.1L RWD U/K
RS Convertible 1968 - 1969 V8 5.4L RWD U/K
RS Convertible 1967 - 1969 L6 3.8L RWD Automatic & Manual
RS Convertible 1967 - 1969 L6 4.1L RWD Automatic & Manual
RS Convertible 1967 - 1969 V8 5.3L RWD Automatic & Manual
RS Convertible 1967, 1969 V8 5.7L RWD Automatic & Manual
RS Convertible 1967 V8 6.5L RWD Automatic & Manual
RS Coupe 1970 - 1973, 1975 L6 4.1L RWD Automatic & Manual
RS Coupe 1970 - 1973 L6 4.1L RWD U/K
RS Coupe 1970 - 1973 V8 5.0L RWD Automatic & Manual & U/K
RS Coupe 1970 - 1973, 1975 V8 5.7L RWD Automatic & Manual
RS Coupe 1970 - 1973 V8 5.7L RWD U/K
RS Hardtop 1969 V8 5.0L RWD Automatic & Manual & U/K
RS Hardtop 1969 V8 5.7L RWD U/K
RS Hardtop 1969 V8 7.0L RWD Automatic & Manual & U/K
RS Hardtop 1968 - 1969 L6 3.8L RWD U/K
RS Hardtop 1968 - 1969 L6 4.1L RWD U/K
RS Hardtop 1968 - 1969 V8 5.4L RWD U/K
RS Hardtop 1967 - 1969 L6 3.8L RWD Automatic & Manual
RS Hardtop 1967 - 1969 L6 4.1L RWD Automatic & Manual
RS Hardtop 1967 - 1969 V8 5.3L RWD Automatic & Manual
RS Hardtop 1967, 1969 V8 5.7L RWD Automatic & Manual
RS Hardtop 1967 V8 6.5L RWD Automatic & Manual
Rally Sport Coupe 1980 V6 3.8L RWD Automatic & Manual
Rally Sport Coupe 1980 V8 4.4L RWD Automatic & Manual
Rally Sport Coupe 1976 - 1979 L6 4.1L RWD Automatic & Manual
Rally Sport Coupe 1976 - 1980 V8 5.0L RWD Automatic & Manual
Rally Sport Coupe 1976 - 1980 V8 5.7L RWD Automatic & Manual
SS Convertible 1968 V8 5.7L RWD U/K
SS Convertible 1968 V8 6.5L RWD U/K
SS Convertible 1967 - 1969 V8 5.7L RWD Automatic & Manual
SS Convertible 1967 - 1969 V8 6.5L RWD Automatic & Manual
SS Coupe 1970 - 1972 V8 5.7L RWD Automatic & Manual
SS Coupe 1970 - 1971 V8 5.7L RWD U/K
SS Coupe 1970 - 1972 V8 6.6L RWD Automatic & Manual
SS Coupe 1970 - 1971 V8 6.6L RWD U/K
SS Hardtop 1968 V8 5.7L RWD U/K
SS Hardtop 1968 V8 6.5L RWD U/K
SS Hardtop 1967 - 1969 V8 5.7L RWD Automatic & Manual
SS Hardtop 1967 - 1969 V8 6.5L RWD Automatic & Manual
Sport Coupe 1981 V6 3.8L RWD Automatic & Manual
Sport Coupe 1981 V8 4.4L RWD Automatic & Manual
Sport Coupe 1981 V8 5.0L RWD Automatic & Manual
Sport Coupe 1981 V8 5.7L RWD Automatic & Manual
Z28 Coupe 1979 - 1981 V8 5.0L RWD Automatic & Manual
Z28 Coupe 1972 V8 6.6L RWD Automatic & Manual
Z28 Coupe 1970 - 1974, 1977 - 1981 V8 5.7L RWD Automatic & Manual
Z28 Coupe 1970 - 1971, 1973 - 1974 V8 5.7L RWD U/K
Z28 Hardtop 1967 - 1969 V8 4.9L RWD Manual
Chevy II 1968 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Nova Coupe 1968 L4 2.5L RWD U/K
Nova Coupe 1968 L6 3.8L RWD U/K
Nova Coupe 1968 L6 4.1L RWD U/K
Nova Coupe 1968 V8 5.0L RWD U/K
Nova Coupe 1968 V8 5.3L RWD U/K
Nova Coupe 1968 V8 5.4L RWD U/K
Nova Coupe 1968 V8 5.7L RWD U/K
Nova Coupe 1968 V8 6.5L RWD U/K
Nova Sedan 1968 L4 2.5L RWD U/K
Nova Sedan 1968 L6 3.8L RWD U/K
Nova Sedan 1968 L6 4.1L RWD U/K
Nova Sedan 1968 V8 5.0L RWD U/K
Nova Sedan 1968 V8 5.3L RWD U/K
Nova Sedan 1968 V8 5.4L RWD U/K
Nova Sedan 1968 V8 5.7L RWD U/K
Nova Sedan 1968 V8 6.5L RWD U/K
Nova 1969-1974 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base Coupe 1970 - 1972 V8 6.6L RWD Automatic & Manual & U/K
Base Coupe 1970 - 1971 V8 7.4L RWD Automatic & Manual & U/K
Base Coupe 1969 - 1970 L4 2.5L RWD Automatic & Manual & U/K
Base Coupe 1969 - 1970 L6 3.8L RWD Automatic & Manual & U/K
Base Coupe 1969 - 1974 L6 4.1L RWD Automatic & Manual & U/K
Base Coupe 1969 - 1973 V8 5.0L RWD Automatic & Manual & U/K
Base Coupe 1969 - 1974 V8 5.7L RWD Automatic & Manual & U/K
Base Coupe 1969 - 1970 V8 6.5L RWD Automatic & Manual & U/K
Base Hatchback 1973 - 1974 L6 4.1L RWD Automatic & Manual & U/K
Base Hatchback 1973 V8 5.0L RWD Automatic & Manual & U/K
Base Hatchback 1973 - 1974 V8 5.7L RWD Automatic & Manual & U/K
Base Sedan 1970 - 1972 V8 6.6L RWD Automatic & Manual & U/K
Base Sedan 1970 - 1971 V8 7.4L RWD Automatic & Manual & U/K
Base Sedan 1969 - 1970 L4 2.5L RWD Automatic & Manual & U/K
Base Sedan 1969 - 1970 L6 3.8L RWD Automatic & Manual & U/K
Base Sedan 1969 - 1974 L6 4.1L RWD Automatic & Manual & U/K
Base Sedan 1969 - 1973 V8 5.0L RWD Automatic & Manual & U/K
Base Sedan 1969 - 1974 V8 5.7L RWD Automatic & Manual & U/K
Base Sedan 1969 - 1970 V8 6.5L RWD Automatic & Manual & U/K
Custom Coupe 1973 - 1974 L6 4.1L RWD U/K
Custom Coupe 1973 V8 5.0L RWD U/K
Custom Coupe 1973 - 1974 V8 5.7L RWD U/K
Custom Hatchback 1973 - 1974 L6 4.1L RWD U/K
Custom Hatchback 1973 V8 5.0L RWD U/K
Custom Hatchback 1973 - 1974 V8 5.7L RWD U/K
Custom Sedan 1973 - 1974 L6 4.1L RWD U/K
Custom Sedan 1973 V8 5.0L RWD U/K
Custom Sedan 1973 - 1974 V8 5.7L RWD U/K
Pontiac 1 model (tapclick to expand)(tapclick to hide)
Firebird 1967-1981 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
326 Convertible 1967 V8 5.3L RWD Automatic & Manual
326 Coupe 1967 V8 5.3L RWD Automatic & Manual
350 Convertible 1968 - 1969 V8 5.7L RWD U/K
350 Coupe 1968 - 1969 V8 5.7L RWD U/K
350 HO Convertible 1969 V8 5.7L RWD U/K
350 HO Coupe 1969 V8 5.7L RWD U/K
400 Convertible 1967 - 1969 V8 6.6L RWD U/K
400 Convertible 1967 V8 6.6L RWD Automatic
400 Coupe 1967 - 1969 V8 6.6L RWD U/K
400 Coupe 1967 V8 6.6L RWD Automatic
Base Convertible 1968 - 1969 L6 4.1L RWD Automatic & Manual & U/K
Base Convertible 1968 - 1969 V8 5.7L RWD Automatic & Manual & U/K
Base Convertible 1967 L6 3.8L RWD Automatic & Manual & U/K
Base Convertible 1967 V8 5.3L RWD Automatic & Manual & U/K
Base Convertible 1967 - 1969 V8 6.6L RWD Automatic & Manual & U/K
Base Coupe 1981 V8 4.4L RWD Automatic & Manual
Base Coupe 1980 - 1981 V8 4.3L RWD Automatic & Manual
Base Coupe 1977 - 1981 V6 3.8L RWD Automatic & Manual
Base Coupe 1977, 1979 - 1981 V8 4.9L RWD Automatic & Manual
Base Coupe 1977 - 1980 V8 5.0L RWD Automatic & Manual
Base Coupe 1971 - 1974 V8 7.5L RWD Automatic & Manual & U/K
Base Coupe 1968 - 1976 L6 4.1L RWD Automatic & Manual
Base Coupe 1968 - 1974 L6 4.1L RWD U/K
Base Coupe 1968 - 1979 V8 5.7L RWD Automatic & Manual
Base Coupe 1968 - 1974 V8 5.7L RWD U/K
Base Coupe 1967 L6 3.8L RWD Automatic & Manual & U/K
Base Coupe 1967 V8 5.3L RWD Automatic & Manual & U/K
Base Coupe 1967 - 1977 V8 6.6L RWD Automatic & Manual
Base Coupe 1967 - 1974 V8 6.6L RWD U/K
Esprit Coupe 1981 V8 4.4L RWD Automatic & Manual
Esprit Coupe 1980 - 1981 V8 4.3L RWD Automatic & Manual
Esprit Coupe 1977 - 1981 V6 3.8L RWD Automatic & Manual
Esprit Coupe 1977, 1979 - 1981 V8 4.9L RWD Automatic & Manual
Esprit Coupe 1977 - 1980 V8 5.0L RWD Automatic & Manual
Esprit Coupe 1976 V8 6.6L RWD Automatic & Manual
Esprit Coupe 1975 - 1976 L6 4.1L RWD Automatic & Manual
Esprit Coupe 1975 - 1979 V8 5.7L RWD Automatic & Manual
Esprit Coupe 1971 - 1974 V8 7.5L RWD U/K
Esprit Coupe 1970 - 1974 L6 4.1L RWD U/K
Esprit Coupe 1970 - 1974 V8 5.7L RWD U/K
Esprit Coupe 1970 - 1974 V8 6.6L RWD U/K
Formula Coupe 1981 V6 3.8L RWD Automatic & Manual
Formula Coupe 1981 V8 4.3L RWD Automatic & Manual
Formula Coupe 1981 V8 4.4L RWD Automatic & Manual
Formula Coupe 1980 - 1981 V8 4.9L Turbo RWD Automatic & Manual
Formula Coupe 1977, 1979 - 1981 V8 4.9L RWD Automatic & Manual
Formula Coupe 1977 - 1981 V8 5.0L RWD Automatic & Manual
Formula Coupe 1975 - 1979 V8 5.7L RWD Automatic & Manual
Formula Coupe 1975 - 1979 V8 6.6L RWD Automatic & Manual
Formula Coupe 1971 - 1974 V8 7.5L RWD U/K
Formula Coupe 1970 - 1974 V8 5.7L RWD U/K
Formula Coupe 1970 - 1974 V8 6.6L RWD U/K
HO Convertible 1968 V8 5.7L RWD Automatic & Manual
HO Convertible 1967 V8 5.3L RWD Automatic & U/K
HO Convertible 1967 V8 6.6L RWD Automatic & U/K
HO Coupe 1968 V8 5.7L RWD Automatic & Manual
HO Coupe 1967 V8 5.3L RWD Automatic & U/K
HO Coupe 1967 V8 6.6L RWD Automatic & U/K
Sprint Convertible 1968 - 1969 L6 4.1L RWD U/K
Sprint Convertible 1967 L6 3.8L RWD Automatic & U/K
Sprint Coupe 1968 - 1969 L6 4.1L RWD U/K
Sprint Coupe 1967 L6 3.8L RWD Automatic & U/K
Trans Am Convertible 1969 V8 6.6L RWD U/K
Trans Am Coupe 1981 V8 4.4L RWD Automatic & Manual
Trans Am Coupe 1980 - 1981 V8 4.9L Turbo RWD Automatic & Manual
Trans Am Coupe 1980 - 1981 V8 5.0L RWD Automatic & Manual
Trans Am Coupe 1979 - 1981 V8 4.9L RWD Automatic & Manual
Trans Am Coupe 1975 - 1979 V8 6.6L RWD Automatic & Manual
Trans Am Coupe 1975 - 1976 V8 7.5L RWD Automatic & Manual
Trans Am Coupe 1971 - 1974 V8 7.5L RWD U/K
Trans Am Coupe 1970 V8 5.7L RWD U/K
Trans Am Coupe 1969 - 1974 V8 6.6L RWD U/K
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

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Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
The 80 series is a cross-flow design for applications where the muffler is mounted transversely behind the rear end. Delivering an aggressive muscle car sound both inside and outside the vehicle, this is an excellent replacement for Camaros & Firebirds with transverse mufflers. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.

Fits Years: 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1985 1986 1987

Fits Models: Camaro, Chevy II, Firebird, Nova, Regal

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