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  6. .960 Thick Flange Karting Exhaust Header for Honda GX200/Clone/Predator
.960 Thick Flange Karting Exhaust Header for Honda GX200/Clone/Predator
.960 Thick Flange Clone Racing Exhaust Header
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.960 Thick Flange Karting Exhaust Header for Honda GX200/Clone/Predator

Part Number: EXF5007
Online Price: $65.42
.960" Performance Exhaust Header for GX200 & Clone Engines – Modified Build Upgrade
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Description

.960" Thick Flange Performance Exhaust Header for Honda GX200 & Clone Racing Engines


High-Flow Exhaust Header for Modified Predator, Tillotson, Ducar & Wildcat Engines

Unlock the full potential of your Honda GX200 or Clone Racing Engine with the .960" Thick Flange Performance Exhaust Header. Designed specifically for high-performance kart racing engines, this header is engineered to support the increased airflow demands of modified and high-RPM applications.


Whether you're competing in Stock Appearing Clone, Limited Modified Clone, Open Clone, AKRA, NKA, WKA, or Outlaw racing classes, this header provides the flow capacity needed to support larger carburetors, aggressive camshafts, ported cylinder heads, and increased displacement combinations.


Featuring a large .960" inside diameter and a precision-machined 1/2" thick exhaust flange, this header improves exhaust scavenging, reduces turbulence, and helps maximize horsepower in the upper RPM range where race-winning power is made.


Built for Serious Clone Engine Performance

As engine airflow increases, the exhaust system becomes one of the most critical performance components. The .960" header is specifically designed for engines that have outgrown traditional stock and box-stock exhaust systems.

Ideal for engines equipped with:

  • Performance carburetor
  • Ported cylinder heads
  • Billet flywheels
  • Billet connecting rods
  • Stroker crankshafts
  • High-lift and long-duration camshafts
  • Increased compression ratios
  • Methanol racing combinations

The larger cross-sectional area allows the engine to efficiently evacuate exhaust gases, helping improve cylinder filling, throttle response, and top-end horsepower.


Key Features

1/2" Thick Precision-Machined Flange

Unlike thin stamped flanges that can warp under extreme heat, this header utilizes a heavy-duty 1/2-inch thick flange for superior durability and sealing performance.

Benefits include:

  • Improved gasket sealing
  • Reduced risk of exhaust leaks
  • Greater resistance to heat distortion
  • Increased durability for racing applications

The flange transitions smoothly from the D-shaped exhaust port to the round header tube, minimizing turbulence and improving exhaust flow efficiency.


Large .960" Internal Diameter

The .960-inch inside diameter is optimized for engines producing significantly more airflow than stock.

Ideal for:

  • 212cc to 240cc Clone Engines
  • Limited Modified Engines
  • Stock Appearing Racing Engines
  • Open Modified Builds
  • High-RPM Racing Applications

The larger diameter helps support increased horsepower and RPM potential without becoming a restriction.


Reinforced Header Support

A welded support bracket helps reduce vibration-induced stress that commonly causes exhaust systems to crack during racing conditions.

Benefits include:

  • Reduced header fatigue
  • Increased durability
  • Improved reliability
  • Longer service life


Welded Racing Construction

Built to withstand the harsh conditions of competitive kart racing, this header features fully welded construction and a robust flange design for long-term durability and consistent performance.


Engine Compatibility

Fits most Honda GX200-based small block clone engines, including:

  • Honda GX200
  • Tillotson 196R
  • Tillotson 212E
  • Tillotson 212R
  • Tillotson 225RS
  • Ducar 196
  • Ducar 212
  • Ducar 224
  • Wildcat 223
  • Wildcat 240
  • Predator 212 Hemi/Non-Hemi
  • Predator 224 Non-Hemi
  • Most Honda GX200-style Clone Engines


Ideal Racing Applications

This header is an excellent choice for:

  • Stock Appearing Clone Classes
  • Limited Modified Clone Classes
  • Open Modified Clone Classes
  • Dirt Oval Kart Racing

Why Choose the .960" Header?

Compared to smaller exhaust headers, the .960" design offers:

  • Increased exhaust flow capacity
  • Improved high-RPM horsepower
  • Better exhaust scavenging
  • Reduced backpressure
  • Enhanced throttle response
  • Improved durability
  • Greater support for future engine upgrades

For racers running highly developed Predator, Tillotson, Ducar, Wildcat, or Honda Clone engines, the .960" Thick Flange Header provides the airflow needed to maximize performance and stay competitive.


Fitment Notes

  • Designed for Honda GX200-style exhaust bolt patterns.
  • May not fit all cage kart chassis due to frame clearance limitations.
  • Always verify exhaust clearance before installation.

When your engine demands more airflow, the .960" Thick Flange Performance Exhaust Header delivers the flow, durability, and race-proven performance needed to help your clone engine perform at its best.

FAQ

What engines does the .960" Performance Header fit?

This header fits most Honda GX200-style small block clone engines, including Predator 212 Non-Hemi, Predator 224, Tillotson 196R, Tillotson 212E, Tillotson 212R, Tillotson 225RS, Ducar 196, Ducar 212, Ducar 224, Wildcat 223, Wildcat 240, and Honda GX200 engines.


What is the inside diameter of the header?

The header features a .960-inch inside diameter designed to support increased airflow requirements of modified and high-performance racing engines.


What racing classes is this header designed for?

The .960" header is commonly used in Stock Appearing Clone, Limited Modified Clone, Open Modified Clone, dirt oval kart  racing applications.


Why use a .960" exhaust header instead of a smaller header?

Modified engines with larger carburetors, ported heads, stroker crankshafts, and performance camshafts require increased exhaust flow. The .960" diameter helps reduce restriction, improve scavenging, and support higher RPM horsepower.


What benefits does the thick flange design provide?

The 1/2-inch thick flange improves gasket sealing, reduces the likelihood of exhaust leaks, resists heat distortion, and provides greater durability than thinner flange designs.


What is the purpose of the D-port to round-port transition?

The transition from the cylinder head's D-shaped exhaust port to the round header tube helps smooth airflow, reduce turbulence, and improve exhaust gas velocity for increased performance.


Is this header suitable for stock engines?

While it will fit many stock engines, the .960" header is specifically designed for modified and racing engines that require greater exhaust flow than a stock header can provide.


Will this header improve horsepower?

On properly modified engines, increased exhaust flow can improve scavenging efficiency, reduce back pressure, and help increase horsepower, especially at higher RPM.


Is the header compatible with ported cylinder heads?

Yes. The .960" header is an excellent choice for engines equipped with ported cylinder heads and other airflow-enhancing modifications.


Can I use this header with a performance carburetor?

Absolutely. The header is specifically designed to complement engines running larger carburetors such as diaphragm carburetors, PE22, PE24, VM22, PWK, and other performance intake systems.


Does the header include a support bracket?

Yes. The header includes a support bracket designed to reduce vibration-induced stress and help prevent cracking during racing use.


Is this header compatible with methanol-fueled engines?

Yes. The .960" header is commonly used on methanol racing engines where increased airflow demands require a larger exhaust system.


Will this header fit all kart chassis?

Not necessarily. Some cage-style and custom kart chassis may have clearance limitations. Always verify frame and body clearance before installation.


Can this header be used on mini bikes?

No, in most cases the header will not fit the frame of a mini bike. 


What engine modifications pair best with this header?

This header works best with:

  • Ported cylinder heads
  • Larger carburetors
  • Billet flywheels
  • Billet connecting rods
  • Stroker crankshafts
  • High-lift camshafts
  • Increased compression ratios
  • Tillotson 212R and 225RS cylinder heads


Is this a good header for future engine upgrades?

Yes. The .960" design provides enough flow capacity to support future modifications, making it an excellent long-term upgrade for serious racers and engine builders.

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