Flowmaster American Thunder Header-Back Exhaust System #17119

In stock
1964-1972 GM A-Body with V8 engines, 2.5" pipes - Aluminized Steel


1964-1972 GM A-Body with V8 engines.

PART# 17119

Fits most 1964-1972 GM A-Bodies with V8 engines and aftermarket long tube headers.

This American Thunder® header-back exhaust system is custom designed for most 1964-1972 GM A-body cars and is for the person looking for a complete 2.50-inch dual exhaust system with a moderately aggressive exterior tone and a moderate interior sound. With easy fit in mind, these aluminized steel systems feature all mandrel-bent tubing, an H-pipe to equalize the exhaust pressures for maximum performance and deep sound and includes a pair of specially selected Super 40™ mufflers. The mandrel-bent 2.50-inch tailpipes tuck up out of the way for maximum clearance and offer you two choices of tailpipe exit styles. Like all Flowmaster® systems, benefits include improved throttle response, power, and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for an easy installation and is covered by our 3-year Limited Warranty. Notes: Does not align with the factory bumper cutouts on an Oldsmobile 442.


Includes Hangers and Hardware for Easy Installation

Mandrel-bent 16-Gauge Aluminized Steel Tubing

Moderate to Aggressive Exterior Exhaust Tone

Built-in Balance Pipe Equalizes Pressures

Flowmaster Quality & Reliability

Super 40 Performance Mufflers

Connects to Headers

Two Tailpipe Choices


Brand Flowmaster

California Proposition 65 Required No

Emission Code 3

Exhaust Series American Thunder

Exit Position Dual Out Rear

Heat Shield No

Inlet Diameter (in) 2.5

Material Aluminized Steel

Muffler Part Number 952548

Muffler Quantity 2

Muffler Series Super 40 Series

Outlet Diameter (in) 2.5

Product Type Exhaust System

Single Dual Dual

Sound Level Moderate/Aggressive

System Type Header-back

Tip Quantity Not Included

Tubing Diameter (in) 2.5

Part Number 17119

More Information
Part Type Exhaust System Kits
Product Line Exhaust
Brand Flowmaster
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