1984 Pontiac Grand Prix Exhaust Headers & Manifolds
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Dorman®Brass Exhaust Manifold Hardware KitBrass Exhaust Manifold Hardware Kit by Dorman®. Dorman manifold bolt and spring kits are just what you need to secure the front flange. Dorman offers products like fasteners and solutions to keep your vehicle running its best.Direct replacement for a proper fitBuilt to Last$5.63 - Victor Reinz®Exhaust Manifold Gasket SetPontiac Grand Prix 1984, Exhaust Manifold Gasket Set by Victor Reinz®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...High quality at an affordable priceExpertly made from premium materials$10.50 - $12.66
- Hedman Hedders®Standard Duty Mild Steel Mid-Length Tube Exhaust HeadersPontiac Grand Prix 5.0L / 5.7L with Air Conditioning, Power Steering, Angle Plug Heads, Gen 1 SB Chevy Engine, Automatic Transmission Column Shifter / Automatic Transmission Floor Shifter 1984, Standard Duty Mild Steel Mid-Length Tube...Made of High Quality MaterialsBuilt to Last$389.76 - $627.37
- Hedman Hedders®Ball-Socket Style Collector Hardware KitPontiac Grand Prix 5.0L / 5.7L with Air Conditioning, Power Steering, Gen 1 SB Chevy Engine, Automatic Transmission Column Shifter / Automatic Transmission Floor Shifter and without Smog Injection or Injection Heads 1984, Ball-Socket...High quality at an affordable priceExpertly made from premium materials$35.03 - $49.40
- Hedman Hedders®Cast Steel Exhaust ManifoldsPontiac Grand Prix with A/C, AutomaticTransmission / Manual Transmission, Chevrolet LS Engine / LS Engines 1984, Cast Steel Exhaust Manifolds by Hedman Hedders®. Primary Tubing Diameter: 1.625". These cast steel manifolds have a low...Made of High Quality Cast SteelBuilt to Last$360.25 - $512.44
- Hedman Hedders®Elite Ultra-Duty Street Mild Steel Black MAXX Satin Black Ceramic-Metallic Long Tube Exhaust HeadersPontiac Grand Prix 5.0L 1984, Elite Ultra-Duty Street Black MAXX Satin Black Ceramic-Metallic Mild Steel Long Tube Exhaust Headers by Hedman Hedders®. Primary Tubing Diameter: 1.5". Collector Outlet Diameter: 2.5". Color: Black. Header...Made of High Quality MaterialsIdeal for Heavy Duty Applications$644.34 - $721.86
- Hedman Hedders®Elite Ultra-Duty Street Mild Steel Black MAXX Satin Black Ceramic-Metallic Racing Exhaust HeadersPontiac Grand Prix 5.0L 1984, Elite Ultra-Duty Street Black MAXX Satin Black Ceramic-Metallic Mild Steel Racing Exhaust Headers by Hedman Hedders®. Collector Outlet Diameter: 2.5". Color: Black. Header Coating: Ceramic. Hedman's Elite...Made of High Quality MaterialsIdeal for Heavy Duty Applications$540.04 - $637.49
- Hedman Hedders®Standard Duty Mild Steel Black MAXX Satin Black Ceramic-Metallic Exhaust HeadersPontiac Grand Prix 1984, Standard Duty Black MAXX Satin Black Ceramic-Metallic Mild Steel Exhaust Headers by Hedman Hedders®. Color: Black. Header Coating: Ceramic. The standard-duty Hedman Hedders in this section come from the factory...Made of High Quality MaterialsExtremely durable, protective SATIN BLACK ceramic-metallic coating$432.14 - $954.18
- Hedman Hedders®Standard Duty Tork Stepped Mild Steel HTC Polished Silver Ceramic-Metallic Mid-Length Tube Exhaust HeadersPontiac Grand Prix 5.0L / 5.7L with Air Conditioning, Power Steering, Angle Plug Heads, A.I.R. System, Gen 1 SB Chevy Engine, Automatic Transmission Column Shifter / Automatic Transmission Floor Shifter 1984, Standard Duty Tork Stepped...Made of High Quality MaterialsBuilt to Last$646.30
- Hedman Hedders®Street 304 SS Black MAXX Satin Black Ceramic-Metallic Mid-Length Tube Racing Exhaust HeadersPontiac Grand Prix 5.0L 1984, Street 304 SS Black MAXX Satin Black Ceramic-Metallic Mid-Length Tube Racing Exhaust Headers by Hedman Hedders®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Color: Black. Header...High quality at an affordable priceExpertly made from premium materials$881.67
- Doug Thorley Headers®Steel Silver Ceramic Coated 4-2-1 Tri-Y Exhaust Headers with AdaptersPontiac Grand Prix 1984, Steel Silver Ceramic Coated 4-2-1 Tri-Y Exhaust Headers with Adapters by Doug Thorley Headers®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 3". Color: Silver. Header Coating: Ceramic. This product...Made to provide unequaled quality and reliabilityMade with the use of the latest technologies$948.86
- Dynatech®Aluminum Adapter PlatePontiac Grand Prix 5.0L with Chevy Small Block Engine 1984, Aluminum Adapter Plate by Dynatech®. These Small Block Chevy to Stahl Aluminum Adapter Plate Kits allow you to use a larger tube size to maximize power. The Standard Chevy bolt...Delivers a huge boost in performance and an awesome soundRigorously dyno-tested to provide maximum horsepower and torque gains$176.99
- Dynatech®Stainless Steel 604 Crate Engine Dirt Late Model Exhaust HeadersPontiac Grand Prix With Chevy Small Block Engine 1984, Stainless Steel 604 Crate Engine Dirt Late Model Exhaust Headers by Dynatech®. Primary Tubing Diameter: 1.625"-1.75". Collector Outlet Diameter: 3". These Stainless Steel 604 Crate...Engineered for 604 Crate enginesGaskets and bolts included$999.99
- Dynatech®Stainless Steel Natural Weld-up Dragster Exhaust Header KitPontiac Grand Prix 5.0L with Chevy Small Block Engine 1984, Stainless Steel Natural Weld-up Dragster Exhaust Header Kit by Dynatech®. Primary Tubing Diameter: 1.875"-2". Color: Natural. Header Coating: Uncoated. These Long Tube Big...Tack-welded to make it easy to change or finish weldCNC laser-cut flanges$429.99
- Flowtech®409 SS Natural Upright Exhaust HeadersPontiac Grand Prix 5.0L 1984, Natural 409 SS Upright Exhaust Headers by Flowtech®. Collector Outlet Diameter: 3". Color: Silver. Header Coating: Uncoated. Flowtech Headers are the perfect combination of quality and value. Mandrel-bent...Consistent tubing diameters for smooth flowIncreases the cylinder scavenging effect and improves engine breathing$339.95 - $340.95
- Flowtech®Afterburner™ Mild Steel Long Tube Exhaust HeadersPontiac Grand Prix 1984, Afterburner™ Mild Steel Long Tube Exhaust Headers by Flowtech®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Header Style: Long Tube. All hardware and premium gaskets included for a complete...Innovative design for small block Chevy equipped vehiclesIncreases both horsepower and torque Large 3" secondary collector$300.95 - $518.95
- Flowtech®Aluminum Header Gasket SetPontiac Grand Prix 5.0L 1984, Aluminum Header Gasket Set by Flowtech®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...Engineered for a precise, easy fitManufactured of P73 Ferroglass non-asbestos facing material for long life$14.95
- Flowtech®Mild Steel Long Tube Exhaust HeadersPontiac Grand Prix 1984, Mild Steel Long Tube Exhaust Headers by Flowtech®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Header Style: Long Tube. Include all mounting hardware. What happens when you're doing a custom...Mandrel-formed Power Plenum collectors for low backpressureLong transition collectors with merge spears for maximum flow and increased exhaust velocity$193.95 - $407.95
- Flowtech®Real-Seal™ Aluminum Exhaust Header GasketsPontiac Grand Prix 5.0L 1984, Real-Seal™ Aluminum Exhaust Header Gaskets by Flowtech®. Flowtech REAL-SEAL header and collector gaskets are a revolutionary break-through in exhaust sealing technology. Constructed of separate layers of...Multi-Layer “Dead Soft” aluminum conforms to create a leak-proof sealWill not burn or blow out$74.95
- Hooker®BlackHeart™ Stainless Steel 304 SS Natural Long Tube Exhaust HeadersPontiac Grand Prix With LS Swap Engine 1984, BlackHeart™ Stainless Steel 304 SS Natural Long Tube Exhaust Headers by Hooker®. Primary Tubing Diameter: 1.875". Collector Outlet Diameter: 3". Color: Silver. Header Coating: Uncoated....This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing VehiclesConstructed of lightweight mandrel bent 304 stainless steel primary tubes wtih a large 3" diameter outlet tube maximizing strength and durability$1,343.95
- Hooker®Competition™ Long Tube Exhaust HeadersPontiac Grand Prix 1984, Competition™ Long Tube Exhaust Headers by Hooker®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Header Style: Long Tube. This product is made of high-quality materials to serve you for years...5/16” machined flanges for a perfect sealLight weight & sturdy 16-gauge tubing$241.95 - $861.95
- Hooker®Exhaust HeadersPontiac Grand Prix With LS Swap Engine 1984, Exhaust Headers by Hooker®. Hooker Adjustable race headers allow you to change your header primary tube lengths, collector lengths and diameters and collector types (Classic 4 into 1, Merged...Max dyno gains of +11.82 HP & +19.76 LB.FT. torque1 5/8”, 16-gauge, stainless steel construction maximizing strength and durability$699.95 - $917.95
- Hooker®LS Swap Stainless Steel Natural Long Tube Exhaust HeadersPontiac Grand Prix With LS Swap Engine 1984, LS Swap Stainless Steel Natural Long Tube Exhaust Headers by Hooker®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 3". Color: Silver. Header Coating: Uncoated. Header Style:...This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing VehiclesLong tube design for optimum engine performance$1,217.95
- Hooker®Mid-Length Tube LS-Swap Exhaust HeadersPontiac Grand Prix With LS Swap Engine 1984, Mid-Length Tube LS-Swap Exhaust Headers by Hooker®. Primary Tubing Diameter: 1.875". Collector Outlet Diameter: 3". Header Material: Steel. Header Style: Mid-Length Tube. This product is made...This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing VehiclesExpertly crafted from premium materials$569.95 - $672.95
- Hooker®RacingHeart™ Street Stock Exhaust HeadersPontiac Grand Prix 5.0L / 5.7L with Small Block Chevy Engine 1984, RacingHeart™ Street Stock Exhaust Headers by Hooker®. Hooker Adjustable race headers allow you to change your header primary tube lengths, collector lengths and...Most Durable AvailableProvides Finest Fit$245.95 - $315.95
- Hooker®Super Competition™ Cast Iron Exhaust ManifoldPontiac Grand Prix With LS Swap Engine 1984, Super Competition™ Cast Iron Exhaust Manifold by Hooker®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 2.50". Hooker cast iron exhaust manifolds have been designed to hug...Free-flowing for good performance and catalytic converter efficiency304 stainless steel mating flanges included (mating flange fasteners are not included)$439.95 - $589.95
- Hooker®Super Competition™ Steel Long Tube Exhaust HeadersPontiac Grand Prix 1984, Super Competition™ Steel Long Tube Exhaust Headers by Hooker®. Header Style: Long Tube. All necessary hardware included for a complete installation. This product is made of high-quality materials to serve you...Light weight & sturdy 18 gauge tubing5/16” machined flanges for a perfect seal$672.95 - $1,149.95
- Hooker®Super Competition™ Steel Silver Metallic Ceramic Coated Short Tube Block Hugger Exhaust HeadersPontiac Grand Prix 5.0L 1984, Super Competition™ Steel Silver Metallic Ceramic Coated Short Tube Block Hugger Exhaust Headers by Hooker®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Color: Silver. Header Coating:...Designed for optimal performanceIndustry’s best welds for durability$617.95
- Milodon®Header BoltsPontiac Grand Prix 5.0L with Chevy Small Block Engine 1984, Header Bolts by Milodon®. Enjoy superior performance by getting this premium-grade Milodon product that is throughly engineered to help take the performance of your exhaust...Painstakingly designed to meet your racing needsState-of-the-art manufacturing technology$12.95
- Moroso®Aluminum Header Flange KitPontiac Grand Prix 5.0L / 5.7L 1984, Aluminum Header Flange Kit by Moroso®. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is specifically...Aluminum plates simplify the task of matching exhaust ports to large tube, dual flange headers on enginesOnly 3/8" thick to save weight$151.99
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