:: 04-06 Pontiac GTO LS1/LS2 Headers & Mid-pipes ::


JBA 2004 Pontiac GTO - SEMA Project

Pontiac has reintroduced the legendary GTO to the masses of hot rod enthusiasts. Powered by an all aluminum small block V8, this machine is smoking tires and unsuspecting competition all across America. JBA was quick to develop the first performance headers for this slick muscle car. Using heavy-duty materials, patented technology and precision engineering - JBA has developed the ultimate performance exhaust header system for street or strip use. More is yet to come with high flow exhaust systems and ignition wires. Check back soon for more up to date information. Download the S3 2004 Pontiac GTO project vehicle article Click here

:: JBA Cat4ward® Headers ::


Click to enlarge
Shown with Silver Ceramic Coating p/n 1809SJS

 

P1

*This Product has been granted a California Air Resources Board (CARB) “E.O” (Executive Order) Exemption, or is considered a Direct Replacement or Consolidated Replacement part. It is 50 State Legal when installed on the appropriate vehicle per the Manufacturer Application guide and Installation Instructions.

With over 300 hp on tap, the 04-06 GTO is capable of blistering performance. JBA's first offering for the GTO comes in the way of high performance headers that elevate that performance. Starting with the oversized ports and smooth flowing 1-5/8" mandrel-bent tubing, these headers give an unrestricted path for spent gasses leaving the engine. They merge in to JBA's patented Firecone® high flow collector for improved exhaust scavenging and reduced turbulence. The result is a gain of 30+hp and 34+ lb.ft. of torque at the rear wheels! Click here to view the dyno results.

Stainless
Steel

Silver Ceramic

Titanium Ceramic

1809S

1809SJS

1809SJT

 

Click here for explanation of header finishes

:: Header Features ::

  • 3/8 " thick laser-cut single piece flanges
  • 1-5/8" Mandrel-bent stainless steel tubes
  • Patented JBA Firecone® merge collector
  • JBA sealing dome connection with exhaust
  • Premium quality hardware and gaskets
  • Direct bolt-on installation
  • Will not void factory warranty
  • Optional ceramic coating (thermal barrier)
  • 50 state smog legal*

*For most applications

:: Header Benefits ::

  • 50 State Smog Legal (EO# D-57-29)
    Increase hp & torque throughout RPM range
  • Improved throttle response
  • Reduced back pressure
  • Reduced under hood temperature
  • Increased passing power
  • Increased low-end torque
  • Makes engine more sensitive to other modifications (intake, chip, supercharger, etc.)
  • Improved engine compartment appearance

* results may vary

:: JBA Exhaust System ::

The new GTO has got power, handling and refinement on par with many more expensive European cars. But underneath the civilized sheet metal skin, the GTO is an American muscle car reborn. It deserves a stout exhaust system to go with its’ muscle car heritage. At JBA, the engineering team developed an exhaust system that really unleashes the power of the small block and delivers a robust exhaust tone befitting this modern day hot rod. It features smooth flowing mandrel-bent tubing to replace the crushed tube factory components. The dual high flow JBA mufflers deliver significantly increased flow and an awesome sound that is sure to encourage frequent smoky burnouts and high RPM blasts down the on-ramp. These systems finish with great looking 4” double-wall stainless steel tips that enhance the overall look of the GTO. When combined with JBA’s Cat4ward® headers and high flow Mid-pipes, the power and sound is unbeatable.


2005 GTO JBA Exhaust system
Part no. 40-3110

:: Exhaust Features ::

  • Aggressive sound without annoying interior resonance
  • Smooth flowing mandrel-bent tubing
  • High flow JBA mufflers
  • Polished stainless steel double-wall exhaust tip
  • High quality hardware
  • O.E. style exhaust hangers
  • Will not void factory warranty
  • 50 state smog legal*

* For most applications

::: Exhaust Benefits ::

  • No drone at cruising speed
  • Reduced back pressure
  • Increased exhaust flow
  • Improved appearance
  • Increased passing power
  • Increased low-end torque
  • Makes engine more sensitive to other modifications (intake, chip, supercharger, etc.)
  • Improved engine compartment appearance
  • Easy bolt-on installation

:: JBA Exhaust Systems ::

Application

Part No.

05-06 GTO, 6.0L, 2-1/2", JBA S/S tips

40-3110

2004 GTO, 5.7L, split rear exit, 2-1/2", JBA S/S tips

40-3109

For more exhaust system applications

:: Sound Files ::

2004 GTO 5.7L
JBA Headers P/N 1809SJT, JBA Mid-pipes P/N 2809SYC and JBA Exhaust System P/N 40-3109


Idle and rev (MP3)
Accelerating (MP3)

:: JBA Mid-Pipes ::

If you're looking to get even more power from your GTO, check out these new high flow Mid-pipes from JBA. These precision built components are engineered to deliver a huge increase in performance for the re-born legend and a powerful exhaust note. These new mid-pipes feature mandrel-bent stainless steel tubing, metal substrate high flow catalytic converters, factory style flanges and hangers and provisions for 02 sensors. Once installed, these components open up the exhaust system for substantial performance gains and a healthy change in the exhaust note. Installation can be done in about one hour with common tools. These mid-pipes are designed to work in conjunction with JBA Cat4ward® headers or factory manifolds.


2004 GTO Mid-pipes with high flow metal substrate cats
Part no. 2809SYC

3

 

*This product is Not legal for Street or Off Highway use in California or in states that have adopted California Emissions Regulations and is only intended for Closed Course Competition use, except 1965 and Older US manufactured California Certified vehicles, 1967 or older US manufactured Federally Certified vehicles, or 1967 and older Foreign manufactured vehicles which may have any aftermarket add-on or modified part installed as long as the vehicle can still meet the tailpipe emission standards for the year of the vehicle and retain any original or retrofit crankcase control (PCV) devices and NOx device required for the year of the vehicle

 

:: 2004 GTO 5.7L Mid-pipes ::

Stainless steel, 2-1/2" w/o Cats

2809SY

Stainless steel, 2-1/2" w/ Cats

2809SYC

Stainless steel, 2-1/2" w/o Cats

6809SD

Stainless steel, 2-1/2" w/ Cats

6809SDC

:: 05-06 GTO 6.0L Mid-pipes ::

Stainless steel, 2-1/2" w/o Cats

2810SY

Stainless steel, 2-1/2" w/ Cats

2810SYC

Stainless steel, 2-1/2" w/o Cats

6810SD

Stainless steel, 2-1/2" w/ Cats

6810SDC

:: JBA Long Tube Headers ::

 

3

 

*This product is Not legal for Street or Off Highway use in California or in states that have adopted California Emissions Regulations and is only intended for Closed Course Competition use, except 1965 and Older US manufactured California Certified vehicles, 1967 or older US manufactured Federally Certified vehicles, or 1967 and older Foreign manufactured vehicles which may have any aftermarket add-on or modified part installed as long as the vehicle can still meet the tailpipe emission standards for the year of the vehicle and retain any original or retrofit crankcase control (PCV) devices and NOx device required for the year of the vehicle

 

Stainless
Steel

Silver Ceramic

Titanium Ceramic

6809S

6809SJS

6809SJT

 

Click here for explanation of header finishes

 

:: JBA PowerCables™ Ignition Wires ::


8mm JBA PowerCables™ Part No. 0807 Click to Enlarge

When upgrading the performance of your GTO, you will want to upgrade your ignition wires to a set of JBA PowerCables™. Each set is custom tailored to your specific application so you get a perfect fit every time. JBA's performance ignition wires feature ultra-low resistance wire-wound mag conductors that allow more spark energy to reach the spark plug without electronic interference. JBA Powercables™ come with 100% silicone jackets for great resistance to high heat as well as abrasion and tears. The high heat boots give plenty of clearance for routing around the headers. The editors at Car Craft made an extra 5 hp on a project engine with a set of 9mm JBA PowerCables™. Installing a set of these wires is easy to do on the GTO and they look great under the hood.

:: Ignition Wires ::

Application

Part No.

04-06 5.7L V8 - Red

W0807

04-06 5.7L V8 - Blue

W08079

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