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Instruction Sheets for Part Number STW-05GTOHCAT
Charts & Guides for Part Number STW-05GTOHCAT
Stainless Works Performance Headers
2005-06 GTO headers. CNC mandrel bent 1 3/4" primaries, , CNC laser cut 3/8" flanges, 3" collector. Includes 3
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Estimated Ship Date: Oct 21, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
05GTOHCAT
Part Type:
Product Line:
Summit Racing Part Number:
STW-05GTOHCAT
UPC:
00887753428608
Header Style:
Long tube one-piece
Header Material:
304 stainless steel
Primary Tube Outside Diameter (in.):
1 3/4 in.
Header Color:
Natural
Flange Style:
Standard
Weld-Up:
No
Cylinder Head Port Shape:
Round
Collector Attachment:
Slip fit
Collector Diameter (in.):
3.00
Collector Reducers Included:
No
Tuned:
No
Flange Thickness (in.):
0.38 in.
Bolts/Studs Included:
No
Gaskets Included:
No
Crossover Pipe Included:
No
Catalytic Converter(s) Included:
Yes
Catalytic Converter Quantity:
2
Motor Mounts Included:
No
Transmission Mount Included:
No
Quantity:
Sold as a kit.
Notes:
Fits with stock cat back exhaust, Includes oxygen sensor extension harnesses.
Stainless Works Performance Headers
Gain powerful sound, better performance, and improved mileage with a set of Stainless Works performance headers. Constructed from high-quality 304L stainless steel, the headers are CNC mandrel-bent and have durable 3/8 in. thick flanges. They're available to fit the factory connection point, or attach to a custom Stainless Works cat-back exhaust. Order the style you prefer and the model designed for your year/make and engine application.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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