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1967 - 1974 Pontiac Firebird Exhaust System Kit (Flowmaster) NEW

Out of Stock
$ 1,353 .95
120-DayReturns
LifetimeWarranty
100%Money-Back

Product Notes Read before buying

⚠️ Most jobs typically require 2 of this item.
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use 409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
American Thunder Header Back Exhaust System
Flowmaster(R) is proud to introduce our American Thunder(R) dual exhaust system for 1967-1974 Chevrolet Camaro, Pontiac Firebird and 1968-1974 Chevrolet Nova's. This all stainless steel exhaust system features our exclusive design 80 Series(TM) Crossflow muffler, all mandrel-bent dual 2.50-inch pipes including an H-pipe crossover for a deep smooth tone that also minimizes any back-rap on deceleration. The dual 2.50-inch stainless steel tailpipes provide a deep rich sound and optimum performance. This crossmember-back 409S stainless system gives these classic muscle cars a moderate tone inside and out. Using the crossflow design, this exhaust places the muffler in the factory location behind the rear axle retaining full ground clearance under the car while offering all the performance benefits of a full dual exhaust system. The system includes all parts, hardware and illustrated instructions, and like all Flowmaster stainless steel street products, it includes our Limited Lifetime Warranty.
Brand: Flowmaster
Condition: New
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Specifications & Info


Attribute Value
Exhaust Series American Thunder
Exhaust Type Dual
Exit Position Dual Rear
Exit Style Straight
Heat Shield Attached No
Inlet Diameter 2.500 In.
Inlet Inside Diameter 2.500 In.
Muffler Count 1
Muffler Part Number Kit Only
Muffler Series 80 Series Crossflow
Outlet Outside Diameter 2.500 In.
System Type Header Back
Tail Pipe Diameter 2.500 In.
Tip Diameter N/a
Tip Quantity 0
Tubing Diameter 2.500 In.
WARNING CA Proposition 65 Yes

Vehicle Fitment Guide

This part fits the following vehicles:

Pontiac 1 model (tapclick to expand)(tapclick to hide)
Firebird 1967-1974 (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 1971 - 1974 V8 7.5L RWD Automatic & Manual & U/K
Base Coupe 1968 - 1974 L6 4.1L RWD Automatic & Manual & U/K
Base Coupe 1968 - 1974 V8 5.7L RWD Automatic & Manual & 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 - 1974 V8 6.6L RWD Automatic & Manual & U/K
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 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 1971 - 1974 V8 7.5L 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.

Lifetime 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.

Returns (120 Days)

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.
Flowmaster(R) is proud to introduce our American Thunder(R) dual exhaust system for 1967-1974 Chevrolet Camaro, Pontiac Firebird and 1968-1974 Chevrolet Nova's. This all stainless steel exhaust system features our exclusive design 80 Series(TM) Crossflow muffler, all mandrel-bent dual 2.50-inch pipes including an H-pipe crossover for a deep smooth tone that also minimizes any back-rap on deceleration. The dual 2.50-inch stainless steel tailpipes provide a deep rich sound and optimum performance. This crossmember-back 409S stainless system gives these classic muscle cars a moderate tone inside and out. Using the crossflow design, this exhaust places the muffler in the factory location behind the rear axle retaining full ground clearance under the car while offering all the performance benefits of a full dual exhaust system. The system includes all parts, hardware and illustrated instructions, and like all Flowmaster stainless steel street products, it includes our Limited Lifetime Warranty.

Fits Years: 1967 1968 1969 1970 1971 1972 1973 1974

Fits Models: Firebird

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