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Pontiac Grand Prix Doug Thorley Headers 

When you own Pontiac Grand Prix 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 Pontiac Grand Prix Doug Thorley headers!


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Fits: 69-74 Pontiac Grand Prix, 67-74 Pontiac Firebird/Trans Am, 64-73 Pontiac GTO/LeMans

PART# THY-341-C

Retail: $1,727.89
$1,503.26


Free Shipping!


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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?

Pontiac Grand Prix LS1 LS2 LS6 LS7 Engine Conversion Swap Long Tube Headers

For Impala Regal Grand Prix 3.8L V6 Supercharge Exhaust Manifold Header Pipe

For Impala Regal Grand Prix 3.8L V6 Supercharge Exhaust Manifold Header Pipe

S/S Header Manifold Pipe Kit For Buick Regal Chevy Impala Grand Prix L67 3.8L V6

For Impala Regal Grand Prix 3.8L V6 Supercharge Exhaust Manifold Header Pipe

Hedman Hedders Exhaust Header for 1981 Pontiac Grand Prix 3.8L V6 GAS OHV







Pontiac Grand Prix Doug Thorley Headers 

When you own Pontiac Grand Prix 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 Pontiac Grand Prix Doug Thorley headers!


Choose Your Vehicle:


1 - 1 of 1
Sort by:




Fits: 69-74 Pontiac Grand Prix, 67-74 Pontiac Firebird/Trans Am, 64-73 Pontiac GTO/LeMans

PART# THY-341-C

Retail: $1,727.89
$1,503.26


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?

Pontiac Grand Prix LS1 LS2 LS6 LS7 Engine Conversion Swap Long Tube Headers

For Impala Regal Grand Prix 3.8L V6 Supercharge Exhaust Manifold Header Pipe

For Impala Regal Grand Prix 3.8L V6 Supercharge Exhaust Manifold Header Pipe

S/S Header Manifold Pipe Kit For Buick Regal Chevy Impala Grand Prix L67 3.8L V6

For Impala Regal Grand Prix 3.8L V6 Supercharge Exhaust Manifold Header Pipe

Hedman Hedders Exhaust Header for 1981 Pontiac Grand Prix 3.8L V6 GAS OHV












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