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Hooker X-Pipe

Fits 05-09 Mustang GT: 4.6L 3V, 2-1/2" Cross-Pipe Balance Tube For PN 6233HKR & 6233-1HKR, 304 Stainless Steel,

PART# 16684HKR

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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% better. That commitment to excellence has made Hooker Headers the winningest header manufacturer in automotice drag racing history.


  • Balances exhaust pressure between the sides of the exhaust system producing a broad power curve
  • Improves low and mid-range torque and HP
  • Works with Hooker Long Tube Headers 6233HKR and 6233-1HKR headers
  • 2-1/2" diameter for maximum flow


Emission Code4
Product TypeExhaust
Tube Size2-1/2 inch
Type of ComponentX-Pipe
Part Number16684HKR



This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Tech Resources

Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Hooker recommends using cast iron exhaust manifolds or old headers during your engine break-in period to avoid damaging your coated damage. Please call Hooker tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Hooker does not recommend the use of header wraps as this will void the warranty.



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