We consider a 409 header to be a worthy investment in the long run. We are here to help you choose the best one for your purposes from all the best available products in market today.

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Our Top Picks:

Best Overall: Buy: Afe Power 409 Header READ REVIEW

Best For Emission Code: Buy: Southwest Speed 409 Header READ REVIEW

Best For Air Flow: Buy: Goplus 409 Header READ REVIEW

Best For Excellent Fit: Buy: Afe Power 409 Header READ REVIEW

Best For Mild Steel: Buy: Flowtech 409 Header READ REVIEW

Best For Heavy Gauge: Buy: Doug'S Headers 409 Header READ REVIEW

Best For Long Tube: Buy: Jegs 409 Header READ REVIEW

Best Overall: Afe Power 409 Header

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Not everyone likes to purchase headers for their regular use, but the power 409 header would be an anomoly. The Afe Power 409 Header provides the strongest welds reducing stress cracks. Make sure this fits by entering your model number. The smooth curves and increased diameter of this header helps remove restrictions and keeps exhaust gas flowing smoothly for improved performance and durability on and off the trails.

The header comes with a limited lifetime warranty. Finally, the afe power 409 header is identical to the head port and is machined flat for a leak-free seal.

As a result, buyers were eager to recommend it to friends and would-be buyers.

• This has formed collectors, it is great for corrosion resistance and has a durable design.
• This means increased horsepower, torque and improved throttle response.
• This is used for true pulse control technology, improving flow and performance.
• This is constructed of a durable cnc mandrel bent 16.

Best For Emission Code: Southwest Speed 409 Header

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Southwest Speed makes beautiful and great headers with classic and smartly chosen materials. The Southwest Speed 409 Header comes with a natural finish, is brand new and it is compatible. 3/8" thick header flanges for strength & maximum sealing surface. Also, it has a natural 409 stainless steel finish.

Finally, the southwest speed 409 header is a perfect combination of quality & value.

• This has increased exhaust velocity, It is great for emission codes and has a header style.
• This will not fit electric engines.
• New and hot releases.

Best For Air Flow: Goplus 409 Header

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The Goplus 409 Header is suitable and reliable and fits well with your regular use. The goplus 409 header is rust-resistant and sturdily designed, greatly limiting the potential for gas leaks. The manufacturer says: Our exhaust manifold is made of high quality 409 stainless steel. This stainless steel exhaust header prevents gas leakage, ensuring a longer service life.

The header is sturdy and it is great for direct replacement. And, this is another and it can vouch for sturdy construction. Most importantly, the goplus 409header protects against warping and cracking.

• This is convenient and it is designed for smooth tubing.
• Do you need a premium exhaust manifold to increase the performance of your car ?.
• This is easy to install and fits into 91.
• In all applicable vehicles, this exhaust header fits in with ease.

Best For Excellent Fit: Afe Power 409 Header

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The Afe Power 409 Header is suitable and reliable and fits well with your daily use. The power 409 header sounds great and it is great for amazing quality. Make sure this fits by entering your model number. The smooth curves and increased diameter of this header helps remove restrictions and keeps exhaust gas flowing smoothly for improved performance and durability on and off the trails.

The header is great for good quality, it is more and has a perfect design. Moreover, the header is another for better quality and it has formed collectors. Above all, the afe power 409 header is used for true pulse control technology, improving flow and performance.

Almost all buyers opine that the header is the best choice for jeep headers. Also, they also found that the header came with a good set of gaskets and fit perfectly. In short, for almost all buyers, the header was what they were looking for.

• Afe power offers performance products for any jeep upgrade you crave.
• Deliver cool air to your engine with a package that’s resistant to the elements.
• This is constructed of 15 inches 14.

Best For Mild Steel: Flowtech 409 Header

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Next on the list, we've got yet another header that manages to win our hearts. It's the Flowtech 409 Header and it's widely considered as one of the most convenient headers you can buy. The flowtech 409 headers are available in painted or ceramic coated mild steel, natural 304 or 409 stainless steel, and polished 304 stainless steel. The Manufacturer says: We are proud to offer these 1-34" long tube headers for 82. In addition, the header is a perfect combination of quality and value. Most importantly, the flowtech 409header has increased exhaust velocity, is great for stainless steel construction and it is made with steel construction.

• 1-3/4” mandrel bent primary tubes and long transition 3” collectors for increased exhaust velocity.
• 3/8” thick header flanges for strength and maximum sealing surface.
• New and hot releases.

Best For Heavy Gauge: Doug'S Headers 409 Header

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The Doug'S Headers 409 Header's superior materials makes sure that it ages well with use. Also, its design is complex and requires a substantial amount of time and resources to do the job right. Make sure this fits by entering your model number. Finally, the doug's headers 409 header is made with thick flanges, fits loose for better flow and it is designed for accurate fit.

• Heavy gauge tubing (16 and 14g) for a longer life.
• Header tubes are pre-polished for a better appearance.
• Thick flanges (3/8 inch to 5/8 inch) with no warping.
• Precision formed long transition collectors that reduce backpressure.

Best For Long Tube: Jegs 409 Header

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate header. The Jegs 409 header is exactly that - it's a simple header that hits all the right notes. Also, it comes with collector 's gaskets and it is primary. Make sure this fits by entering your model number. Lastly, the Jegs 409 Header has mounting hardware, is round and it is great for exhaust gaskets.

• Can't find stainless steel header bolts(1 pair) stainless steel 3 in.
• New and hot releases.