Long Tube Headers for Factory-Chassis Vehicles

Long tube headers replace restrictive factory exhaust manifolds with longer primary tubes that let exhaust gases leave the engine with far less back pressure. The payoff is more horsepower and torque through the mid-range and top end, sharper throttle response, and a deeper, more aggressive exhaust note.
At Kooks, we have built headers and exhaust since 1962. Browse our inventory to choose a header configuration that aligns with your vehicle chassis and engine.

What Long Tube Headers Do for Exhaust Performance

Factory manifolds are built for packaging and cost, not flow. They force exhaust gases through short, cramped passages that create back pressure and cost the engine power.
Long tube headers give each cylinder its own longer primary tube before merging into a collector. That reduces restriction, improves scavenging, and lets the engine breathe — which shows up as horsepower and torque gains you can feel, especially above the mid-range.
Kooks headers are built from stainless steel and engineered around the factory chassis, so they integrate with your existing exhaust components instead of forcing compromises elsewhere in the system.

Short Tube vs. Long Tube Headers

	Short Tube Headers	Long Tube Headers
Power delivery	Idle to mid-RPM	Mid-range and top end
Best for	Mild street builds, bolt-on simplicity	Performance builds chasing peak power
Installation	Straightforward, often factory-location	Involved — usually needs matching mid-pipes and a tune
Sound	Crisp, closer to stock volume	Louder, deeper, more aggressive
Emissions	More likely to pass inspection	Often off-road use only — verify for your state

How to Choose the Right Long Tube Headers

Start with fitment, then work toward your performance goal:
• Chassis and engine: Match the header to your exact year, model, and engine. A header built for one generation of a platform may not fit the next.
• Primary tube diameter: Larger primaries favor high-RPM power; smaller primaries keep more low-end torque. Make your choice based on how you actually drive the vehicle.
• Supporting components: Headers work as part of a system. Plan for matching connection pipes, X-pipes, or H-pipes so everything flows together.
• Emissions requirements: Confirm what’s legal where you drive before you order.

5.7 HEMI Long Tube Headers for Exhaust Performance Upgrade

If your vehicle runs the 5.7-liter HEMI V8, long tube headers are one of the most effective ways to unlock what the platform already has. Paired with the right connection pipes and a tune, they improve exhaust flow across the RPM range and sharpen throttle response.
Match the header to your specific chassis — a RAM 1500 and a Grand Cherokee both run the 5.7, but they need different headers.

Selecting the Right Long Tube Headers for Your Vehicle

At Kooks Headers & Exhaust, we provide a range of custom designed headers for different exhaust performance goals. Not sure which configuration fits your build? Our team can match a header to your chassis, engine, and performance goal - and tell you what else you’ll need to complete the system.
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FAQ

Long tube headers reduce exhaust restriction so the engine breathes more freely. Compared with factory manifolds, that means more horsepower and torque, better throttle response, and a deeper exhaust tone — with the biggest gains in the mid-range and top end.

Long tube headers make more power; short tube headers are easier to install and more likely to pass emissions. If you’re building for performance, you should consider long tube. If you want a bolt-on improvement on a daily driver that has to stay inspection-friendly, short tube is the safer call.

Yes. Long tube headers work fine on a daily-driven truck and add real horsepower, torque, and exhaust tone. Go in knowing the trade-offs: the exhaust will be noticeably louder, and you’ll need to confirm emissions compliance for your state.

In most applications, yes. Moving the O2 sensors and changing exhaust flow affects how the ECU reads the engine, and a tune is what turns the hardware gain into usable power without throwing codes.