Flowmaster 817139 Header-back System 409S for 1969 GM F-Body

Flowmaster 817139 Header-back System 409S - Dual Rear Exit - American Thunder®- Moderate/Aggressive

For the person looking for a complete Header-back dual exhaust system with an aggressive tone. With easy fit in mind, Flowmaster's America Thunder system for GM F-Body cars includes specially-selected Super 44 mufflers to make your Camaro or Firebird come alive. This Header-back dual exhaust system uses 2.50 in. 409S stainless steel tubing (Backed by our 10-year warranty!) and a durable H-pipe design that delivers improved throttle response, power and mileage. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

Features:

• Mandrel bent 16 gauge 409 stainless tubing
• Moderate to aggressive exterior exhaust tone
• Includes hangers and hardware for easy installation
• Header back system
• Premium Flowmaster quality

Product Specification:

• 2WD/4WD: 2WD
• Exhaust series: American Thunder®
• Exit Position: Dual Rear Exit
• Heat shield: None
• Inlet diameter (inches): 2.50
• Material: Stainless Steel
• Muffler part number: 842546
• Muffler quantity: 2
• Muffler series: Super 44 Series
• Outlet diameter (inches): 2.50
• Single/Dual: Dual
• Sound level: Moderate/Aggressive Sound
• System type: Header-back System
• Tip diameter (inches): 2.50
• Tip quantity: 2
• Tubing diameter (inches): 2.50

Fitments:

• 1969 Chevrolet Camaro Base V8, 5.0L
• 1969 Chevrolet Camaro Base V8, 5.3L
• 1969 Chevrolet Camaro Base V8, 6.5L
• 1969 Chevrolet Camaro Base V8, 5.7L
• 1969 Chevrolet Camaro Base V8, 5.7L
• 1969 Chevrolet Camaro Base V8, 6.5L
• 1969 Chevrolet Camaro Base V8, 7.0L
• 1969 Chevrolet Camaro Base V8, 5.4L
• 1969 Chevrolet Camaro Base V8, 5.0L
• 1969 Chevrolet Camaro Base V8, 7.0L
• 1969 Chevrolet Camaro SS V8, 6.5L
• 1969 Chevrolet Camaro Z28 V8, 4.9L
• 1969 Pontiac Firebird 350 V8, 5.7L
• 1969 Pontiac Firebird 350 HO V8, 5.7L
• 1969 Pontiac Firebird 400 V8, 6.6L
• 1969 Pontiac Firebird Base V8, 5.7L
• 1969 Pontiac Firebird Base V8, 5.7L
• 1969 Pontiac Firebird Base V8, 6.6L
• 1969 Pontiac Firebird Trans Am V8, 6.6L

Note: Convertible models require an aftermarket X-brace or 3/8 shims for clearance.
1969 GM F-Body with a V8 engine.