SKU: 2142103731

MACE PERFORMANCE MANIFOLD INSULATOR KIT TO SUIT HOLDEN STATESMAN VS WH ECOTEC L36 3.8L V6

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Description

MACE PERFORMANCE MANIFOLD INSULATOR KIT TO SUIT HOLDEN STATESMAN VS WH ECOTEC L36 3.8L V6Exclusive to Mace Engineering, here we have our design registered lower manifold insulator to suit the Holden VS and VT 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 insulator to suit the Holden VS and VT 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 inlet temps.

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:

  • The image is for illustrative purposes only.
  • Manifold insulator for WH Caprice/Statesman released from August 2000 onwards can be purchased through another listing
  • Please confirm your runner profile prior to purchase as there was a design change in later model engines.
  • 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.
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: 2142103731

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Amazon Customer
Draper, US
★★★★★ 3
smells like lavender, but otherwise good
smells intensely of lavender, which I do *not* enjoy. it's not added just as a perfume, so they're claiming it's unscented, but the lavender smell will definitely follow you around. texture is a little sandy and crumbly (think like a Burt's Bees chapstick texture instead of a smooth Chapstick brand one), which I actually like, it feels like it really applies well instead of just gliding on top of the skin. smooth once it's on the skin, transfers and wipes off easily but that's expected of a balm, and it's easy to reapply. definitely a good size for the price, but the stick is so big that it's actually a little unwieldy to apply on eczema around the hands or face. it works moderately well for my eczema patches, but honestly the lavender smell is so strong and off putting to me that I'll probably give it away anyways.
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Reviewed in the United States on November 22, 2025
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criscostick
Lowell, US
★★★★★ 5
Perfect for dry, sensitive skin
I have extremely sensitive, dry skin. I also hate the feeling of oily lotion on my hands. I love using this stick so I don’t have to get the lotion on my hands and it hasn’t irritated my skin at all. It is extremely thick and sometimes hard to spread on without it being clumpy, but that’s not an issue for me.
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Reviewed in the United States on May 11, 2026
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CoreyTheFro
Pawtucket, US
★★★★★ 5
In most of all circumstances, this works
Style: SPF 50, Size: 6 Fl Oz (Pack of 2)
For Summer time and when playing and working in the sun, this is my go to sunscreen! I love how it is more natural than all the other ones out there. I have been sort of a spray on sunscreen connoisseur and this is the one that is my favorite. Also, if I have gotten a burn and put this on it, I believe it helps start the healing process on the burn I got. This is at least what I experienced multiple times last year. The only circumstance that this sunscreen fails miserably is in the Caribbean. I recently went on a cruise to that region and applied this sunscreen and it became evident that this and the other brands of spray on sunscreen do not work in Caribbean sun. The only sunscreen that works is the lotion based stuff that you rub into your skin. I have also consulted with friends on spray on sunscreen in the Caribbean and they all fail as well. So, this is why I say that it works in almost every circumstance.
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Reviewed in the United States on May 1, 2023
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Curl up with a book
Waukegan, US
★★★★★ 1
spray nozzle needs work.
Style: SPF 50, Size: 6 Fl Oz (Pack of 2)
I purchased 3 of these cans. Only one of them worked and that one was ok. Sprayed well, smelled good and and protected my skin and even though it was hard to press it to work, we WERE able to use it, but the other three .............? They would not rotate to the unlock position, therefore they would not spray. My husband and I tried everything to get it to rotate. It seems both the top and bottom ring spin around effectively doing nothing. So to pay almost $40 for only one can to work is definitley not worth the money. Buy somewhere else.
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Reviewed in the United States on March 7, 2024
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Amanda Lockwood
Lake Worth, US
★★★★★ 5
Great product! Highly recommend! Worth the money
Style: SPF 50, Size: 6 Fl Oz (Pack of 2)
Our family absolutely loves Alba sunscreen! It’s light, not super greasy, and smells really good. Everytime I see it on sale, I buy more of it! My husband is a red head, and he has to wear sunscreen all the time, and he prefers Alba brand over any others. Great Product!
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Reviewed in the United States on November 20, 2025

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