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GMC Envoy Doug Thorley Headers 

When you own GMC Envoy Doug Thorley headers, you own a piece of history! Doug Thorley has been making headers since 1958, so it's safe to say that they know what they're doing when it comes to finding the horsepower hidden in your ride's exhaust. Amazing attention to detail and real craftsmanship are just two reasons you'll love your new GMC Envoy Doug Thorley headers!


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Fits: 2002 GM 6.0L Pick Up / SUV 2/4WD

PART# THY-309-S-C

Finish: Ceramic Coated
Header Style: Shorty
Retail: $1,332.29
$1,159.09


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Fits: 2002-12 GM 4.8L-6.2L Pick Up / SUV 2/4WD

PART# THY-309-C

Finish: Ceramic Coated
Header Style: Shorty
Retail: $1,294.48
$1,126.20


Free Shipping!


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Long Tube Stainless Steel Headers w/ Gaskets for Chevy GMC 07-14 4.8L 5.3L 6.0L

Long Tube Stainless Steel Headers w/ Gaskets for Chevy GMC 07-14 4.8L 5.3L 6.0L

Header Panel For 2002-09 GMC Envoy 2002-06 Envoy XL Thermoplastic

Stainless Steel Headers Long Tube w/ Gaskets for Chevy GMC 07-14 6.0L 5.3L 4.8L

Headlight Header Panel Nose For 2002-09 GMC Envoy 2002-06 Envoy XL Thermoplastic

Stainless Steel Headers Long Tube w/ Gaskets for Chevy GMC 07-14 6.0L 5.3L 4.8L





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  • Headers(2)
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  • Doug Thorley(2)
Finish
  • Ceramic Coated (2)
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  • Shorty (2)
Price
  • $500 and Over(2)


GMC Envoy Doug Thorley Headers 

When you own GMC Envoy Doug Thorley headers, you own a piece of history! Doug Thorley has been making headers since 1958, so it's safe to say that they know what they're doing when it comes to finding the horsepower hidden in your ride's exhaust. Amazing attention to detail and real craftsmanship are just two reasons you'll love your new GMC Envoy Doug Thorley headers!


Choose Your Vehicle:

Shop GMC Envoy Doug Thorley Headers by Year

1 - 2 of 2
Sort by:




Fits: 2002 GM 6.0L Pick Up / SUV 2/4WD

PART# THY-309-S-C

Finish: Ceramic Coated
Header Style: Shorty
Retail: $1,332.29
$1,159.09


Free Shipping!


Fits: 2002-12 GM 4.8L-6.2L Pick Up / SUV 2/4WD

PART# THY-309-C

Finish: Ceramic Coated
Header Style: Shorty
Retail: $1,294.48
$1,126.20


Free Shipping!


Previous1Next

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Not able to find what you are looking for?

Long Tube Stainless Steel Headers w/ Gaskets for Chevy GMC 07-14 4.8L 5.3L 6.0L

Long Tube Stainless Steel Headers w/ Gaskets for Chevy GMC 07-14 4.8L 5.3L 6.0L

Header Panel For 2002-09 GMC Envoy 2002-06 Envoy XL Thermoplastic

Stainless Steel Headers Long Tube w/ Gaskets for Chevy GMC 07-14 6.0L 5.3L 4.8L

Headlight Header Panel Nose For 2002-09 GMC Envoy 2002-06 Envoy XL Thermoplastic

Stainless Steel Headers Long Tube w/ Gaskets for Chevy GMC 07-14 6.0L 5.3L 4.8L