SKU: 56886323808

MACE PERFORMANCE MANIFOLD INSULATOR TO SUIT HOLDEN RODEO RA ALLOYTEC LCA 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 RODEO RA ALLOYTEC LCA 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: 56886323808

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Moises
Belleville, US
★★★★★ 5
Good work pants
Color: Dark Brown, Size: 46W x 32L
run small / snug I would recommend getting next size up minimum.
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Reviewed in the United States on May 18, 2026
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Diego
Lake Worth, US
★★★★★ 5
Durable and great fit
Color: Black, Size: 32W x 34L
Great fit and quality, nice color, this are a work pants, pretty durable and they haven’t fade, also they don’t shrink or wrinkle
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Reviewed in the United States on April 15, 2026
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LucasCoto
Waukegan, US
★★★★★ 4
Run small, size it up
Color: Mushroom, Size: 32W x 30L, Color: Mushroom, Size: 32W x 30L
They go small, Im 5'8", 165lbs, usually 32x30 fits just rigth in most brands Levis, Izod, whatever, can't even close the zipper on this one, my dingus prints in the front if I manage to close it, I will try a 34 or even 36, if you want one, size it up. Length is right. Anyway, the pant is good, sturdy looking material, is not soft but nothing uncomfortable probably gets right after break it in, reinforced stitches on pockets. I think they would work great for a technician, salesman or an engineer, those jobs where you have to look like a human being with a polo shirt but sometimes needs to do something without ripping your pants while crouching or for daily abuse of the regular Joe, will try another that fits
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Reviewed in the United States on May 28, 2026
R
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Red
Boise, US
★★★★★ 5
Best Value For The Money
Color: Black, Size: 36W x 32L
My grandson uses these for work. Well-made and durable. Worth the price. Fit is comfortable.
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Reviewed in the United States on April 13, 2026
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Ranae Ledford
Birmingham, US
★★★★★ 5
Good, but size up!
Color: Black, Size: 30W x 29L
These are exactly what I wanted, but as many have stated, you need to size up. I found that going up two sizes (from my usual 28 to a 30) made for a great fit. I love that they come in a 29 length. One anything point is they came with creases in them from being folded in the package for a length of time. I had to steam and press them before wearing. I’ll likely buy them in other colors.
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Reviewed in the United States on March 18, 2026

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