MACE 25MM PERFORMANCE MANIFOLD INSULATOR KIT TO SUIT HOLDEN MONARO V2 L67 SUPERCHARGED 3.8L V6
SKU: 57995481903

MACE 25MM PERFORMANCE MANIFOLD INSULATOR KIT TO SUIT HOLDEN MONARO V2 L67 SUPERCHARGED 3.8L V6

Sale price$139.50 Regular price$155.00
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Description

MACE 25MM PERFORMANCE MANIFOLD INSULATOR KIT TO SUIT HOLDEN MONARO V2 L67 SUPERCHARGED 3.8L V6Exclusive to Mace Engineering, here we have our design registered lower manifold insulatorto suit the Holden series from VS to VY fitted with L67 Supercharged 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

Exclusive to Mace Engineering, here we have our design-registered lower manifold insulatorto suit the Holden series from VS to VY fitted with L67 Supercharged 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 of20 W/m-K) placed between the upper and lower manifolds being 0.5mm thick, replacing them with a 25mm manifold insulator will conduct an amazing 3,448 times less heat.

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.

 

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 25mm Manifold insulator
  • 1 X Set of longer bolts
  • 1 X 25mm fuel injector extender kit
  • 1 X Gasket sealer

Vehicle Fitment Guide

 

Notes:

  • A 6.35mm manifold insulator can be purchased through another listing.
  • Slight modifications to the fuel rail will be needed to install this insulator.
  • The original bolts can be reused if this insulator is not used in conjunction with any intercooler.
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: 57995481903

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Vi-Ed
New York, US
★★★★★ 5
Love these books. Better for alcohol markers
Format: Paperback, Format: Paperback
I like these coloring books because of the designs, thw fact that the back page is empty (thinking of bleeding) and the amount of drawings on the book. Meaning, its worth for the money. These are cute. Alcohol markers: these pages are made for this kind of markers. They blend well. Acrylic markers: these are not the best pages for these markers. Need to re-do strokes to get good coverage. Are not porous enough. Meaning, I can see the strokes on these pages; but, in other type of paper, the acrylic markers work better with single strokes. First picture: acrylic marker (see the strokes) Second picture: bleeding on back of paper (alcohol marker) Third picture: alcohol markers (other Coco Who book)
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Reviewed in the United States on May 14, 2026
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KDWeaver
Lake Worth, US
★★★★★ 5
Grab one of these for some relaxing coloring therapy!
Format: Paperback
such an adorable coloring book! I would recommend this for adults who like to color as well as children. Coloring pages are cute, easy pictures to color -nothing complicated. Everything is large enough to color easily. I look forward to sitting down with this coloring book and getting some stress-free time coloring.
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Reviewed in the United States on April 10, 2026
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Tellsitlikeitis
Belleville, US
★★★★★ 5
Cute
Format: Paperback
Love this coloring book. Cute pictures.
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Reviewed in the United States on May 23, 2026
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Lucy L.
Cuba, US
★★★★★ 4
Charming Coloring Book — Fun for All Ages
Format: Paperback
This coloring book has quickly become a favorite in our house! The illustrations are adorable and relaxing, making it just as enjoyable for adults as it is for kids. My daughter and I have spent hours coloring together, and it’s been a great way to unwind after school or on quiet weekend afternoons. What I love most is how versatile it feels — the designs range from simple and playful to more detailed, so everyone finds pages that match their mood and skill level. It’s also a fun way to keep little hands engaged without screens. Whether you’re looking for a creative activity to share with your kids or a gentle, artistic escape for yourself, this coloring book delivers plenty of charm and enjoyment. The only reason giving 4 stars is because of the price. Although the book is great, I do not think it is worth almost $10.
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Reviewed in the United States on December 30, 2025
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maddie
San Leandro, US
★★★★★ 5
love coloring in these
Format: Paperback
always adorable pictures!!!
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Reviewed in the United States on May 23, 2026

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