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Introducing REVHIGH's stainless 304 headers to suit the Alloytec range of 3.6L V6's!!

Revhigh Exhaust has designed, tested, and manufactured the highest quality stainless steel exhausts available. We were one of the first companies to integrate heat shield material on performance exhausts to reduce engine intake temperatures and prevent heat soak. Our full range of V2 exhausts are slowly becoming available.

This listing is for the following vehicle! 2006 - 2009 Holden 3.6L Alloytec found in the SV6, International, EVOKE, Omega and many others.

This version has the following

  • High Flow Catalytic converter: No
  • Decat (no cat converter better for crackle/pop and race engines): Yes
  • Heat shield material added for less heat in engine bay and better thermal extraction: Yes
  • High Flow pipe design with interior smoothing: Yes
  • Resonator inside to reduce rasp and add more low end noise: YES
  • High Flow Mid Pipe Included: Not applicable

 

These are the best sounding and looking exhaust manifolds/down pipes on the market and are available at an amazing price.

 

100% brand new, 100% T-304 Stainless Steel with computerized mandrel-bends CNC-machined flanges for strong solid support TIG-welded for strength and durability 3-stage polish for a mirror-like finish on some exhausts Revhigh continues to develop the highest performing exhaust systems for most sports cars, trucks, and SUVs. With an in-house dyno facility and R&D staff, They stay on top of current vehicle trends and deliver products that fit and perform to an unsurpassed level of standards.

 

Full set of left and right headers and cats or full set of down pipe with mid pipe where applicable.

Q: For which vehicles is it necessary to buy a pair of headers? On your website are headers automatically sold in pairs for these vehicles?
A: When purchasing exhaust headers for a V-6 or V-8 engine, the header package is complete with two headers. If your vehicle is a 4-cylinder, there only a single header that is uséd.

Q: What does a header do? Why buy a header?
A: An exhaust header is a performance product that replaces your factory exhaust manifold and improves an engine's performance by allowing air to flow more freely. The easier an engine breathes the more power it produces. Headers generally use piping with a wider diameter than factory tubing, which allows more air to pass through the exhaust system than factory. A header is one of the easiest bolt-on modifications you can make to increase horsepower, making an effective use of money if your goal is to quickly gain horsepower.

Q: How do you install a header?
A: A header is a direct bolt-on. Simply remove the factory OEM exhaust manifold and the aftermarket header is put in its place. The header is to be attached the head of your vehicle. Remove all the bolts that hold the flanges in place and detach the factory manifold. The down pipe or exhaust pipe should be removed as well and then reattached once the header flanges are bolted back onto the head.

Q: How much does the material uséd to make the header matter?
A: There are two main materials that headers are manufactured out of: ceramic and stainless steel. Ceramic headers are less expensive, but are prone to cracking if they get to be extremely hot. Stainless steel headers are more expensive but are more durable and generally more stylish. Stainless steel headers can take any kind of heat you throw at it and not prone to cracking.

Q: What are the different tubing options for headers and what is the difference between them?
A: There are two major designs for headers: the 4-2-1 design and the 4-1 design. In many cases 4-1 headers are designed for racing applications where the vehicle is being driven at or near redline. The 4-1 design maximizes top end power, whereas the 4-2-1 evenly distributes it throughout the power band. Either way, you're going to be getting more horsepower from a header.

A. We recommend tuning any vehicle built after 1996 with a header or downpipe install. More so if you've gone the decat option (where applicable) A. If you want max noise decat is best, you will likely get engine cat codes like P0430 and P0420, which can be cleared in a tune. Decat will not pass emissions testing, 100-200cell cat options are more likely to pass emisssions but we cannot gaurantee this due to the age and condition of your engine being out of our control.

A. There are strictly no returns on these items once used. We do not cover return shipping for swap over parts.

 

Please note:

  • ​These are decatted with a resonator.​​​​​​​
  • These will suit the LLT engine too found in the 2010-2011 SV6 however due to them sitting slightly lower in the engine bay you may need to modify the header slightly (1-3MM) so it doesn't touch the steering rack. This may also be the case with the ALLOYTEC motors depending on the condition of your engine mounts and how the motor is sitting. As such we recommend fitting by a professional workshop or fabricator.
  • These are not for legal road use in Australia, only for off road race use.
  • A tune is recommended after fitting headers.
  • A high flow cat version will be available in the future but please note high flow cats add to the raspy noise these motors are notorious for, as such the resonated version is recommended to keep this tone down.

High Flow HEADERS EXTRACTORS for Holden Alloytec 3.6L LY7 LEO LE0 LWR V6 DOWNPIP

AU$950.00Price
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