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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-17120
American Thunder Header-Back Exhaust System 1964-1972 Chevy El Camino V8
$1,04995
Ships on 09/09/2026
Lowest Price GuaranteeGM Chevy El Camino/GMC Sprint V8
American Thunder Header-Back Exhaust System1964-1972 Chevy El Camino V8 1964-1972 GMC Sprint V8 2.5" Tubing 3" Polished SS Tips Dual Side Exit Super 50 Series Muffler Aluminized Steel
FLOWMASTER MUFFLERS 17120 Features:
For the person who is looking for a complete crossmember-back dual exhaust system with a moderately aggressive tone for their 1964 to 1972 Chevrolet/GMC El Camino/Sprint with a V8 engine. With easy fit in mind, these systems are constructed from 2.50-inch mandrel-bent aluminized steel with a built in H-pipe to equalized the exhaust pressures, eliminates backrap on deceleration and makes maximum power. The system includes a pair of specially selected Super 50 Series mufflers for a deep powerful exterior sound with minimal interior tone and is suited for the enthusiast who wants their performance to be heard, just not inside the cab. The mandrel-bent tailpipes exit at an angle behind the rear wheels and are finished off with large 3.00-inch angle cut polished stainless tips for an aggressive look. 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.- Includes Hangers and Hardware for an Easy Installation
- Super 50 Series Performance Mufflers Eliminates Drone
- Mandrel-bent 16-gauge Aluminized Steel Tubing
- Moderate to Aggressive Exterior Exhaust Tone
- Dyno Tuned for Maximum Performance
- Polished 3.00-inch Stainless Steel Tips
- Includes H-pipe Assembly
Experience An Exhaust System Tuned for Performance and Tone
If you need an exhaust system that has been dyno tuned to produce maximum performance, look no further than Flowmaster's American Thunder Exhaust Systems. This line, designed for passenger cars, produces a range of systems that offer moderate to aggressive exhaust notes. Available in axle, cat, and header-back configurations, Flowmaster has you covered. To ensure durability and ease of installation, these kits are made from 16-gauge mandrel bent tubing and includes the necessary hangers and hardware.
Part TypeExhaust System
Product LineFlowmaster American Thunder Exhaust Systems for Cars
BrandFLOWMASTER
Package Height12.0
Package Width12.0
Package Length26.0
Weight36.0 PG
Tailpipe Diameter (In.)2.5
Muffler Inlet Inside Diameter2.50 in.
Hangers IncludedYes
Main Piping Diameter2.50 in.
Tail Pipe QuantityDual
Inlet TypeWeld-On
Tip CutStraight
Exhaust Tip Material304 Stainless Steel
Catalytic Converter Quantity0
Exit LocationSplit side
Inlet QuantityTwo
Muffler Body Length17 in.
Sound LevelAggressive / Moderate
Muffler Body MaterialAluminized Steel
Exhaust Tip CutAngled
Gasket Or Seal IncludedNo
Exhaust Tip IntercooledNo
Pipe ColorSilver
System FinishAluminized
Muffler Quantity2
Muffler Inlet Outside Diameter2.63 in.
Exit QuantityTwo
Tip MaterialStainless steel
Muffler Flanged OutletNo
Tip Quantity2
Exhaust Tip ResonatedNo
Exhaust TypeDual
Catalytic Converter IncludedNo
Heat Shield IncludedNo
Part CategoryPerformance Parts
Hardware IncludedYes
Exhaust Tip WallSingle Wall
Exhaust Tip Quantity2
Exhaust Tip FinishPolished
Exhaust Tip EdgeSlash Cut
Valve IncludedNo
Muffler TypeChambered
Pipe MaterialAluminized Steel
Tail Pipe Tapered OutletNo
Muffler Body ShapeOval
Mounting Bracket IncludedYes
Muffler Outlet Quantity1
Muffler FinishBlack High-Temperature Paint Finish
Inlet Diameter2.50 in.
Clamps IncludedYes
Muffler StyleChambered
Tip Outlet Size2.5 in (63.5 mm)
FinishAluminized
Exit StyleDual Out Side
Tip IncludedYes
Clamping TypeU-Bolt
Muffler Flanged InletNo
Spring Bolt Kit IncludedNo
Muffler SeriesSuper 50 Series
QuantitySold as a kit
Muffler IncludedYes
Exhaust Tip ConnectionClamp-On
System StyleHeader-back
Tail Pipe Outlet Outside Diameter2.50 in.
Muffler ConfigurationSingle inlet/Single outlet
System MaterialStainless steel
Valve TypeNot Applicable
Tip Edge StyleNon-rolled edge
Tip ShapeRound
Intermediate Pipe Diameter2.5 in (63.5 mm)
Exhaust Tip Diameter3 in.
Part FitmentDirect Fit
Vendor Part Number17120
Package Qty1
Package TypeEA
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