SKU: 5532657526

MACE 25MM PERF. MANIFOLD INSULATOR KIT TO SUIT HOLDEN STATESMAN VS WH WK L67 SUPERCHARGED 3.8L V6

Sale price$91.80 Regular price$102.00
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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26

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Description

MACE 25MM PERF. MANIFOLD INSULATOR KIT TO SUIT HOLDEN STATESMAN VS WH WK 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: 5532657526

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4.1 ★★★★★
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David LeClercq
Battle Creek, US
★★★★★ 5
Card holders.
Size: 1000 Hard Sleeves+1000 Soft Sleeves
Great product!! I collect cards. These are my go to
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
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Verified Purchase
Belizabeth
Belleville, US
★★★★★ 4
Good product, value is present but could use better packing
Size: 100 Hard Sleeves+100 Soft Sleeves
These were a great alternative for cards I was giving to a donation (not for money nor profit but still deserved protection). I forgot what the order was initially as everything comes in the one box; seems to be the original toploader box. I mention this because it is overstuffed and had tape around the entire box three times over; even then there were torn box corners. It didn't effect the top loaders as so far mine don't look scratched nor any more distorted than premium, known brands I've bought plenty of times. The penny sleeves weren't counted and I've only used a few but they didn't pop open on both ends nor were they oddly sized. I'd also say I didn't buy this for the gloves but mine only had one in it and tried it on just because and it fit pretty accurately- but I am a petite female with small hands so if you aren't (I wouldn't dare presume size nor gender demographics) but they'd be too small for someone who wears a men's or women's large or XL. Then again they could vary with purchase and I got lucky with size but unlucky with quantity. Overall this is the better value set I've seen and bought that has quality product and delivers on the provided claims; I would've preferred different packaging so I could order as a gift to send as well. Pictures to follow soon.
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Reviewed in the United States on May 13, 2024
A
Verified Purchase
Austin Kanode
West Palm Beach, US
★★★★★ 5
10% of Team Bags Don't Work!
Size: 1000 Hard Sleeves+1000 Soft Sleeves
(Since I wrote this review. The company made things right by sending me 100 cards leaves and 200 top loaders for free so they earned a 5 star) 10% of team bags had the glue peeled off when you removed the plastic cover, so they couldn't close. Besides that, everything else works well!
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Reviewed in the United States on April 27, 2026
S
Verified Purchase
Sarah Peaveler
Battle Creek, US
★★★★★ 5
Highly recommend - Pokemon
Size: 500 Hard Sleeves+500 Soft Sleeves
Got these for my pokemon collection, everything was nice and sealed. Some of the hard card covers had some scuffs but it is what it is. Over all I’m beyond happy with my purchase. Quality is amazing, beautiful sleeves to help keep my collection safe. Thickness is great!! Easy to store and use. Love the extra gloves. I would highly recommend this products & seller. I’ve even been recommending it to my friends already. I will definitely be buying again. I couldn’t be happier.
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Reviewed in the United States on June 16, 2025
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Verified Purchase
Jen
Pawtucket, US
★★★★★ 5
Trendy!
Model: Transparent
Trendy and fun! Sticks to anything and looks nice on the back of a phone
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026

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