SKU: 95043317728

MACE PERFORMANCE MANIFOLD INSULATOR TO SUIT HOLDEN CALAIS VZ VE ALLOYTEC LY7 3.6L V6

Sale price$47.70 Regular price$53.00
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

MACE PERFORMANCE MANIFOLD INSULATOR TO SUIT HOLDEN CALAIS VZ VE ALLOYTEC LY7 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: 95043317728

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Pawtucket, US
★★★★★ 3
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Color: Black, Size: 16 Inch
The bag is really cute and designed so well, can't believe how spacious it is yet compact! Not bulky and doesn't take up much room, lots of pockets. Perfect for both fashion and function. Took off stars thought because it came folded in half in its package and it's VERY wrinkled. Kind of takes away from it's look and makes it look bad :( pretty major wrinkles everywhere and I'm not sure if it can come out in this material, though I will try ironing it. If the company shipped it better it would be 5 stars.
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Reviewed in the United States on July 2, 2025
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Cindy Hudson
Belleville, US
★★★★★ 5
Good quality
Color: Dark Brown, Size: Large
Great top, perfect sleeve length
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Reviewed in the United States on May 19, 2026
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mynamehere
Dallas, US
★★★★★ 4
4 and 3/4 Stars
Color: White, Size: XX-Large
Plus: Fabric has heft and weight, soft, completely opaque, drapes well, and doesn't cling. Sleeve length is perfect and width comfortable. Neck size is comfortable. Dressy enough for an office work top. My bust is 1-2 sizes larger than my hips, but this top doesn't look too oversized at my hips. Minus: Hem is even with my wrists, I wish it was an inch longer. Wash inside out to avoid snags. Sewn well but they do skip the bias tape that covers the back neck seam on the inside of t-shirts.
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Reviewed in the United States on April 12, 2026
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Connie Strehler
Phoenix, US
★★★★★ 5
Comfort and Style
Color: Dark Red, Size: Medium
Very soft, comfortable and versatile. Can dress up or down in this shirt. I love it!
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Carol
Birmingham, US
★★★★★ 5
Great buy
Color: White, Size: Large
Great T-shirt if you want something a little dressier than a regular T-shirt. Nice material and fit. Love the little bit longer sleeve.
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Reviewed in the United States on April 26, 2026

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