SKU: 8728815300

MACE PERFORMANCE MANIFOLD INSULATOR TO SUIT HOLDEN CREWMAN VZ ALLOYTEC LE0 3.6L V6

Sale price$67.50 Regular price$75.00
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

MACE PERFORMANCE MANIFOLD INSULATOR TO SUIT HOLDEN CREWMAN VZ ALLOYTEC LE0 3.6L V6Exclusive to Mace Engineering, here we have our design registered lower manifold insulators to suit the Holden VZ and VE series, fitted with an Alloytec 3. 6L V6. What are manifold insulators and what do they do? Manifold insulators are a thermal insulating spacer that mount betweenyour 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

Exclusive to Mace Engineering, here we have our design-registered lower manifold insulators to suit the Holden VZ and VE series, fitted with an Alloytec 3.6L V6.

 

What are manifold insulators and what do they do?

Manifold insulators are a thermal insulating spacer that mount betweenyour 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 out 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 2007 model Holden Statesman, with a standard Alloytec 6. Looking at the graph, we can see that power produced down low had increased by a staggering 10%! While power also increased virtually across the entire rev range. 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 installed under the same driving conditions, making it very difficult to touch without getting burnt!

 

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:

  • 2 X Manifold insulator

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:
  • Our 25mm manifold insulatorcannot be installed on MY09.5 vehicles due to obstruction of the water hose.
  • Longer bolts are required for the installation of these manifold insulators.
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: 8728815300

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nick
Houston, US
★★★★★ 5
Color and weight are perfect
Team Name: Lightweight Comforter, Size: King, Color: Sage Green, Team Name: Lightweight Comforter, Size: King, Color: Sage Green
Perfect, lightweight; just what I was looking for. It’s soft and feels nice. Sage Green color is true to the photo. I bought a king for a queen bed, I’m glad I didn’t get the queen because it would have left my mattress visible but I can still see the bed with the king. For the price, it’s okay quality and I’m okay with that.
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Reviewed in the United States on June 7, 2026
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Morgan
Grantham, US
★★★★★ 5
Lightweight, Cozy, and Affordable!
Team Name: Lightweight Comforter, Size: Queen, Color: Lavender Purple
This comforter is such a great value for the price. It’s lightweight but still warm and cozy, making it perfect for year-round use. The fabric feels soft to the touch, and it fluffs up nicely right out of the package. The queen size fits my bed perfectly and looks great once styled with pillows. It also washes well — I tossed it in the washer and dryer and it came out just as fluffy as before, no clumping or shifting. If you want a comfortable, budget-friendly comforter that looks and feels nice, this is definitely a great pick!
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Reviewed in the United States on September 10, 2025
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sarina
Massapequa, US
★★★★★ 5
Much lighter still fluffy
Team Name: Lightweight Comforter, Size: King, Color: White
My last one was 200-250 gsm. This is 150gsm it is perfect. Still fluffy. Not to flat and perfect to go in my douvet and much cooler
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Reviewed in the United States on May 16, 2026
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Kat
Massapequa, US
★★★★★ 3
King Size does not include corner tabs
Team Name: Lightweight Comforter, Size: King, Color: White
DISCLAIMER - KING COMFORTER DOES NOT HAVE CORNER TABS I've ordered 2 comforters prior to in the Queen size which included handy corner tabs to secure the duvet cover. I recently ordered in the King size and the tabs weren't there. Thinking I got defective product, I returned and was sent a replacement. I was disappointed to discover the replacement also didn't have tabs, so I guess the comforters made in the King size just don't have them. It would be helpful to have that listed somewhere in the product details. It's not worth the trouble of returning again so I'm keeping it. Otherwise the lightweight feel of this comforter is great for Florida weather, obviously we liked these so much we have three in our home now!
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Reviewed in the United States on September 11, 2025
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Amynicoles
San Leandro, US
★★★★★ 5
Perfffff
Color: White, Size: Oversized King, Color: White, Size: Oversized King
So very comfy! I did not expect to love this as much as I do. I was worried about it being too hot. It’s not. I was used to sleeping with a quilt but this is so comforting, the weight of it is so cozy & perfect. I sized up with oversized king for my king size duvet cover. Its so fluffy and perfect for the aesthetic I wanted
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Reviewed in the United States on June 8, 2026

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