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Hooker 3901-4HKR - Competition Header

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$582.95

$626.00

You save: $43.05 (7%) off MSRP

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This part fits

  1. 1978 Pontiac Firebird 6.6L V8 cid:403
  2. 1978 Pontiac Firebird 6.6L V8 cid:400
  3. 1977 Pontiac Firebird 6.6L V8 cid:403
  4. 1977 Pontiac Firebird 6.6L V8 cid:400
  5. 1977 Pontiac Firebird 5.7L V8 cid:350 cc:5733
  6. 1977 Pontiac Firebird 5.7L V8 cid:350
  7. 1977 Oldsmobile Cutlass Salon 6.6L V8 cid:403
  8. 1977 Oldsmobile Cutlass Salon 5.7L V8 cid:350
  9. 1977 Oldsmobile Cutlass 6.6L V8 cid:403
  10. 1977 Oldsmobile Cutlass 5.7L V8 cid:350
  11. 1976 Oldsmobile Cutlass Salon 5.7L V8 cid:350
  12. 1976 Oldsmobile Cutlass Tiara 5.7L V8 cid:350
  13. 1976 Oldsmobile Cutlass 5.7L V8 cid:350
  14. 1975 Oldsmobile Cutlass Salon 5.7L V8 cid:350
  15. 1975 Oldsmobile Cutlass 5.7L V8 cid:350
  16. 1974 Oldsmobile Cutlass 5.7L V8 cid:350
  17. 1973 Oldsmobile Cutlass 5.7L V8 cid:350
  18. 1972 Oldsmobile Cutlass 5.7L V8 cid:350
  19. 1971 Oldsmobile Cutlass 5.7L V8 cid:350
  20. 1970 Oldsmobile Cutlass 5.7L V8 cid:350
  21. 1969 Oldsmobile Cutlass 5.7L V8 cid:350
  22. 1968 Oldsmobile Cutlass 5.7L V8 cid:350
  23. show all...
Authorized Dealer

About this product

Part #: 3901-4HKR

With Hooker Super Competition the objective has always been to make the maximum horsepower and to put it at the optimum point in the power curve. It takes a lot of time and money to do the job right. We will sometimes spend up to 2 to 3 times more just to make the Super Competition header work only 5 to 10 percent better. That commitment to excellence has made Hooker Headers the winningest header manufacturer in automotice drag racing history.

More Details

ApplicationAutomotive
Coated FinishTitanium
Collector Diameter2.500 in.
Collector Tube Size2.500 in.
Engine Make/SizeOlds 350-403
FinishTitanium Ceramic
Head StyleLong-Tube
MaterialStainless Steel
Port ShapeSame As Port/Can Be Matched
Primary Tube Diameter1.625 in.
Tube Diameter1.625 in.
Tube DirectionDown Swept
Tube MaterialMild Steel
Additional Documents
  1. Installation Instructionspdf
  2. Warrantypdf

See what our community says about hooker products

product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Great price, no clearance problems, mean sound.
Is this your first time buying from this brand? Did you consider other brands?
First time buy, sounds way more beefer than a cat back with stock manifold
View on Jarod's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Perfect for my custom setup
Is this your first time buying from this brand? Did you consider other brands?
no
Was it easy to install? Any installation tips that will help others?
3 bolts and i was rocking!
View on Brandon's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
The price that I got them at was unbeatable
Is this your first time buying from this brand? Did you consider other brands?
First time buying from this brand, I did consider other options but I believe that I made the right choice
Was it easy to install? Any installation tips that will help others?
It was easy to install with 2 people. Have someone underneath moving the headers while someone else guides them into place
Once you've had a chance to use the product, did it meet your expectations?
It was great
View on Eli's build
Barrell McCarthy

229

Barrell McCarthy
1982 Chevrolet Camaro
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Price
View on Barrell's build
Jesus Verduzco

373

Jesus Verduzco
1965 Ford Mustang
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Performance and sound
What were you trying to accomplish by adding this product?
More power and better sound
Was it easy install? Any installation tips that will help others?
Easy and straight forward
Once you’ve had a chance to use the product, did it meet your expectations?
Great product, makes the engine flow and sound great
View on Jesus's build
California prop 65 warningWARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

*Some manufacturer restrictions apply.

About Hooker

The Hooker philosophy is simple - make real, useable power by balancing the intake and exhaust pressure waves. This efficiently expelles all the burnt gases while drawing in the maximum fresh charge of fuel and air. The Hooker team will sometimes spend twice as much time developing a header to find better performance. Hooker Headers - Do It Right The 1st Time.

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