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Instruction Sheets for Part Number WLK-89027
Thrush Turbo Header Back Dual Exhaust Systems
Exhaust System, Dual Kit, Header-Back, Steel, Aluminized, Chevy, GMC, Pickup 1966-72, RWD, Kit
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Need It Sooner? We recommend these similar substitute parts:
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Estimated Ship Date: Monday 10/26/2026
Overview
Brand:
Manufacturer's Part Number:
89027
Part Type:
Product Line:
Summit Racing Part Number:
WLK-89027
UPC:
086387890274
System Material:
Steel
System Style:
Header-back
Exhaust Type:
Dual
Exit Location:
Split rear
System Finish:
Aluminized
Catalytic Converter(s) Included:
No
Intermediate Pipe Diameter (in.):
2.50 in.
Muffler Included:
Yes
Muffler Quantity:
Two
Muffler Configuration:
Single inlet/Single outlet
Muffler Style:
Turbo
Muffler Material:
Steel
Muffler Color:
Natural
Muffler Finish:
Aluminized
Hardware Included:
Yes
Tailpipe Diameter (in.):
2.50 in.
Tip Included:
No
Remanufactured:
No
Quantity:
Sold as a kit.
Notes:
Depending on vehicle configuration, some modifications may be required. See installation instructions for details, if applicable. Designed for use with Dynomax full-length headers with 3 in. collectors only.
Special Attention:
It is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards.
Thrush Turbo Header Back Dual Exhaust Systems
Give your vehicle a performance-sounding exhaust. These Thrush turbo header back dual exhaust systems come complete with smooth-bent exhaust pipes, Thrush turbo mufflers, an H-pipe balance tube (included in most kits), and all hardware needed for a complete installation. Thrush header back dual exhaust systems are designed for use with full-length headers, and the tailpipes will exit in the stock location.
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Some parts are not legal for use in California or other states with similar laws / regulations
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