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Product Discontinued
FLOWMASTERPART NUMBER: 389-817457
American Thunder Header-Back Exhaust System 1978-1988 GM A-Body/G-Body V8
Currently Unavailable
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
GM A-Body/G-Body
- American Thunder Header-Back Exhaust System
- 1978-1988 GM A-Body/G-Body V8
- 2.5" Tubing
- 3" Polished SS Tips
- Dual Rear Exit
- Super 44 Series Muffler
- 409S Stainless Steel
Note: Requires the use of a "double hump" cross member.
Part TypeExhaust System
BrandFLOWMASTER
Package Height15.5
Package Width16.5
Package Length52.5
Weight76.5 PG
Part CategoryPerformance Parts
Hardware IncludedYes
Tip IncludedYes
Tailpipe Diameter (In.)2.5
QuantitySold as a kit
Tip CutStraight
System FinishNatural
Muffler IncludedYes
Muffler QuantityTwo
System StyleHeader-back
Muffler ConfigurationSingle inlet/Single outlet
System MaterialStainless steel
Exit LocationRear
Exit QuantityTwo
Tip MaterialStainless steel
Tip Edge StyleNon-rolled edge
Tip Quantity2
Muffler StyleChambered
Inlet QuantityTwo
Tip ShapeRound
Tip Outlet Size3 in (76.2 mm)
Intermediate Pipe Diameter2.5 in (63.5 mm)
Exhaust TypeDual
Vendor Part Number817457
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
