SKU: 90553067722

MACE PERFORMANCE MANIFOLD INSULATOR KIT TO SUIT HOLDEN ONE TONNER VY ECOTEC L36 3.8L V6

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Description

MACE PERFORMANCE MANIFOLD INSULATOR KIT TO SUIT HOLDEN ONE TONNER VY ECOTEC L36 3.8L V6Exclusive to Mace Engineering, here we have our design registered lower manifold insulators to suit the Holden VX and VY series, fitted with an Ecotec L36 3. 8L 6 cylinder engine. What are manifold insulators and what do they do? Manifold insulators are a thermal insulating spacer that mount between your engine block and intake manifold. Made from a heat blocking composite, our manifold insulators will increase power from your engine by keeping the

Exclusive to Mace Engineering, here we have our design-registered lower manifold insulators to suit the Holden VX and VY series, fitted with an Ecotec L36 3.8L 6 cylinder engine.

 

What are manifold insulators and what do they do?

Manifold insulators are a thermal insulating spacer that mount between your engine block and intake manifold. Made from a heat blocking composite, our manifold insulators will increase power from your engine by keeping the intake cooler and increase low end torque by increasing runner length.

 

 

But how do manifold insulators keep the intake manifold cooler?

Given our manifold insulators are made from a composite material with a thermal conductivity of 0.29 W/m*K as opposed to aluminium, which has a thermal conductivity of 150 W/m*K; The difference works about to be that aluminium conducts heat 500 times higher than our composite material!

Also, with gaskets often made out of steel (thermal conductivity of 20 W/m-K) placed between the upper and lower manifolds being 0.5mm thick, replacing them with a manifold insulator will conduct up to an amazing 3,448 times less heat depending on the size chosen.

Our composite material also exhibits high stiffness and compressive strength, can withstand temperatures up to 150°C, and has a thermal expansion coefficient very similar to aluminium to increase sealing capabilities. In addition, the spacer can also withstand boosted conditions with ease.

 

Dyno Results:

The following test was conducted on a 1996 Holden Commodore VS with head and cam work. Normally the problem of low down torque is made worse when you stick a larger cam (with more overlap) in any engine as you effectively shift the power band. However by looking at the graph, we can see that power produced down low had increased by a staggering 10% using only our 12mm manifold insulator, with top-end increasing by a further 2kw at the rears! Please note that these results don't reflect the true nature of the on road gains given the lack of actual airflow, which further drop inlettemps.

Under normal driving conditions the plenum (upper manifold), with the insulator in place, becomes cool enough to comfortably touch. Unlike before, without the manifold insulator under the same driving conditions, making it very difficult to touch without getting burned!

 

POWER RUN, BEFORE AND AFTER MANIFOLD INSULATOR

 

Key Benefits:

  • Design registered.
  • Reduces charge air temperature resulting in better power consistency and detonation prevention.
  • Power increase with no undesirable side effects.
  • Improved low end torque by increasing runner length.
  • Improved fuel economy.
  • Easy to install.
  • Can be used as a replacement gasket.
  • Reusable.
  • Proven gains at an affordable price.

 

Contents:

  • 1 X Manifold insulator
  • 1 X Bolt pack
  • 1 X Silicone gasket maker
  • 1 X Mace sticker

Vehicle Fitment Guide

 

Parts Guide

 

Please select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.

 

Notes:

  • To achieve optimum performance on a naturally aspirated engine, we recommend running a 25mm manifold insulator and a 12mm plenum spacer. However, for forced induction (side mount supercharger or turbo) we recommend running a 12mm manifold insulator and a 25mm plenum spacer.
  • Please confirm your intake runner profile prior to purchase as there was a design change in later model engines.
  • Manifold insulator for WH Caprice/Statesman released before August 2000 can be purchased through another listing.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 90553067722

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John & Janet
Battle Creek, US
★★★★★ 5
I like it cause it works
Color: Silver
Amazing, opens wine bottles like it's 1999 and works no matter what. Get one, now.
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Reviewed in the United States on May 29, 2026
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SC Power Engineering Co.
Belleville, US
★★★★★ 5
Excellent build quality and thick chrome, strong threaded screw
Color: Silver
I purchased this as a gift for a friend that had problems with wine corks being broken and left inside the bottle. The intention was to have this longer tapered screw extend all the way beyond the bottom of the cork to pull out the entire cork without leaving pieces inside the bottle. One detail that is missing from the instructions is the secret to how a wine cork remover must be used to insure success. The tapered screw must be twisted many turns, which will raise the two lever arms directly upwards away from the bottle. It is critical that you keep turning the screw and remove the metal or paper seal that is on the outside of the bottle before you stop turning. By looking at the bottom of the cork inside the bottle, you can watch the end of the tapered screw appear as it is turned deep inside the cork, beyond the bottom of the cork. Once you have visual verification that the screw is all the way in, notice the appearance of the TOP of the screw outside the cork. You will see that it appears to have been turned very far, potentially damaged the outer surface of the cork. That is a GOOD sign that you used enough rotations of the screw to correctly engage the entire cork. Never skip these steps before you proceed to remove the cork. When the screw is in the correct position, the two levers are all the way up. It may take some force to push them down, so put the wine bottle in a SINK, not a countertop. This lowers the bottle for easier access and gives you a safe place to put the cork remover after you open the bottle. Using a controlled force with both hands, move both levers down carefully to make sure that you do not deflect the tapered screw in a way that is misaligned with the neck of the bottle. As the cork is removed, the last part may be fragile from contact with the wine. In addition, the entire cork remover becomes less stable, and free to pivot if you are not careful. This last motion can still damage a cork and create fragments, so just be careful and precise to gently pivot the levers all the way down and then if necessary use a twisting motion to ease the last part of the cork out of the bottle. This method has never failed to remove hundreds of corks from bottles made all over the world without wrecking the cork. Try it and you will never have a broken cork problem again.
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Reviewed in the United States on September 7, 2022
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Amazon Customer
Draper, US
★★★★★ 4
Good Quality
Color: Silver
Easy to use. Seems to be better quality than others I have had.
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Reviewed in the United States on February 13, 2026
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Amazon Customer
Birmingham, US
★★★★★ 5
Sturdy
Color: Silver
Sturdy and effective!
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Reviewed in the United States on June 3, 2026
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Carolyn P.
Dallas, US
★★★★★ 5
Exceptional design
Color: Silver
Best corkscrew I have ever purchased. Loved the design which is very easy to use. The design is very attractive and adds to my decor. I give it 10 stars!
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Reviewed in the United States on May 25, 2026

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