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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


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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.

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

Exhaust Manifold Header For Grand Prix/Gtp/Regal/Impala 3.8L V6 Stainless Steel

HEADER MANIFOLD EXHAUST+WRAP Fits 97-05 GRAND PRIX/GTP/REGAL/IMPALA 3.8L V6

J2 FOR 1964-1988 CHEVY/PONTIAC/BUICK 265-400 SBC ENGINE EXHAUST HEADER MANIFOLD

FAPO Hugger Headers for Oldsmobile Cutlass Pontiac Grand Prix Buick Regal 78-87

T304 Stainless Steel Exhaust Header For Grand Prix Gtp Regal Impala 3.8L V6







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:

Shop Pontiac Grand Prix Doug Thorley Headers by Year

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?

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

Exhaust Manifold Header For Grand Prix/Gtp/Regal/Impala 3.8L V6 Stainless Steel

HEADER MANIFOLD EXHAUST+WRAP Fits 97-05 GRAND PRIX/GTP/REGAL/IMPALA 3.8L V6

J2 FOR 1964-1988 CHEVY/PONTIAC/BUICK 265-400 SBC ENGINE EXHAUST HEADER MANIFOLD

FAPO Hugger Headers for Oldsmobile Cutlass Pontiac Grand Prix Buick Regal 78-87

T304 Stainless Steel Exhaust Header For Grand Prix Gtp Regal Impala 3.8L V6











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