SKU: 56129588551

MACE PERFORMANCE MANIFOLD INSULATOR KIT TO SUIT CHEVROLET CAPRICE PPV SIDI LFX 3.6L V6

Sale price$63.00 Regular price$70.00
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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31

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Description

MACE PERFORMANCE MANIFOLD INSULATOR KIT TO SUIT CHEVROLET CAPRICE PPV SIDI LFX 3.6L V6Exclusive to Mace Engineering, here we have our design registered lower manifold insulators to suit Chevroletvehicles fitted with SIDI 3. 0L 3. 6L V6 engines. 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

Exclusive to Mace Engineering, here we have our design-registered lower manifold insulators to suit Chevroletvehicles fitted with SIDI 3.0L 3.6L V6 engines.

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 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:

  • (6.35MM – 5%) (12MM – 10%) (25MM – 13%) gain in bottom end torque.
  • 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(Not included in MI672)
  • 1 X Silicone gasket maker

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 Manifold Insulator may vary depending on engine design and model so we strongly recommend you lookhereand view your vehicle's engine code before proceeding with your purchase.
  • This Manifold insulator kit does come with bolts however due to the large variances of the High Feature V6 engines, fitment of the bolts as well as the manifold insulators themselves, cannot be 100% guaranteed. If in doubt, please share photos and measurements of your vehicle's manifold runners and bolts with us only then we would be able to assist better.
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: 56129588551

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SShidal
Port Orchard, US
★★★★★ 3
Look nice, not sturdy or supportive
Size: 17 Inch, Color: Dark Blue
The color and thickness of the shelf is great. Very easy to install. But the wall mount portion is cheaply made and doesn’t support the shelf as well as it should. Once mounted the shelf leans forward and isn’t sturdy. After mounting, I found my items had slid off end up on the floor.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026
A
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Amazon Customer
Birmingham, US
★★★★★ 5
The color is beautiful
Size: 17 Inch, Color: Dark Blue
These are beautiful! I bought them for my Grandsons Baseball room. We haven’t put them up yet. They will be a great addition to his red, white, and blue baseball room!
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Reviewed in the United States on May 18, 2026
C
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Chara Reed
Natrona Heights, US
★★★★★ 5
Perfect add to bathroom
Size: 24x6 2Pcs, Color: White
These are perfect. They are just as advertised. They are easy to hang and all needed materials come included (screws and different drywall hanging options).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
B
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breya fuentes
Lexington, US
★★★★★ 5
Pink perfect and easy to mount
Super easy. Just mount the bracket with a small level and the shelf slides on perfect. And has screws to keep shelf from sliding off. Easy to Do and the pink was the perfect color
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Reviewed in the United States on April 29, 2026
R
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Rumor
Dallas, US
★★★★★ 4
Good quality, but a few issues with the hidden mounts and levelness.
Size: 35x7 2Pcs, Color: Black, Size: 35x7 2Pcs, Color: Black
These are quite nice and also sturdy. Only complaint I have is that I bought a couple of these, and on one of them, only one of them, it was difficult to get the hidden mounts to go into the holes. I think it was probably a manufacturing defect thing. Also, on that particular one, it wasnt as level as the other. Not a show stopper, but if you need a perfectly level type of mounting situation, I would be careful here.
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Reviewed in the United States on September 14, 2025

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