SKU: 58631820212

MACE PERFORMANCE MANIFOLD INSULATOR KIT TO SUIT HOLDEN CREWMAN VY ECOTEC L36 3.8L V6

Sale price$70.16 Regular price$77.95
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

MACE PERFORMANCE MANIFOLD INSULATOR KIT TO SUIT HOLDEN CREWMAN VY ECOTEC L36 3.8L V6Exclusive to Mace Engineering, here we have our design registered lower manifold insulators to suit the Holden VX and VY series, fitted with an Ecotec L36 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

Exclusive to Mace Engineering, here we have our design-registered lower manifold insulators to suit the Holden VX and VY series, fitted with an Ecotec L36 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 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 1996 Holden Commodore VS with head and cam work. Normally the problem of low down torque is made worse when you stick a larger cam (with more overlap) in any engine as you effectively shift the power band. However by looking at the graph, we can see that power produced down low had increased by a staggering 10% using only our 12mm manifold insulator, with top-end increasing by a further 2kw at the rears! 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 inlettemps.

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 under the same driving conditions, making it very difficult to touch without getting burned!

 

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:

  • 1 X Manifold insulator
  • 1 X Bolt pack
  • 1 X Silicone gasket maker
  • 1 X Mace sticker

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:

  • To achieve optimum performance on a naturally aspirated engine, we recommend running a 25mm manifold insulator and a 12mm plenum spacer. However, for forced induction (side mount supercharger or turbo) we recommend running a 12mm manifold insulator and a 25mm plenum spacer.
  • Please confirm your intake runner profile prior to purchase as there was a design change in later model engines.
  • Manifold insulator for WH Caprice/Statesman released before August 2000 can be purchased through another listing.
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: 58631820212

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 1935 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Arlene
Port Orchard, US
★★★★★ 4
Good, convenient and portable printer
Color: Green, Color: Green
This printer works great for my needs. The battery life has been good and the printer app functionality has worked without any issues. For me it is very easy to use and understand so overall I think it is a good, portable and convenient printer. However my one ad only issue is the labels get stuck and causes an error about 80% of the time meaning the label won’t print out unless I open it and realign it perfectly. That is a pain! I am contemplating returning it for a new one to see if it is just a design flaw or a printer issue so I am rating it 4 stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
T
Verified Purchase
Travis
Cuba, US
★★★★★ 5
I’m officially old now, but at least my stuff is organized. (A truly im-press-ive gadget).
Color: Green
I hit 30 recently, and apparently, my birthday present from the universe was a sudden, overwhelming urge to organize my garage and pantry. I bought this Nelko P21 to help with the transition into full adulthood, and honestly, it’s been a blast to use. Setting it up was surprisingly painless. You just download the app on your phone, turn on Bluetooth, and it connects almost instantly. The app itself is straightforward—you don't need a tech degree to figure out how to change the fonts, add borders, or even insert little icons. Since it's a thermal printer, you never have to buy ink or deal with messy cartridges, which is a massive plus for me because I would absolutely find a way to spill it. The machine itself is tiny, basically the size of a couple of smartphone decks stacked together, so it doesn't take up any room in a drawer. The labels print fast, the text is sharp, and the adhesive on the tape that comes with it holds up well on plastic storage bins and glass jars. My only minor complaint is that the app forces you to look at a ton of font options, and a lot of them are locked behind a subscription or paywall, but the free, basic fonts are more than enough to label a box of spare cables or spice jars. If you've reached the stage of life where clean storage containers bring you joy, this thing is worth every penny.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
S
Verified Purchase
Shahbaz
Alexandria, US
★★★★★ 5
Didn’t Expect to Use It This Much, Now I Reach for It Daily
Color: Black, Color: Black
I originally bought this label maker for a few simple tasks, but it quickly turned into something I use almost every day. As someone who manages multiple locations and stays organized across different responsibilities, having a quick and reliable way to label and categorize items makes a bigger impact than you’d think and this does exactly that. What stands out: Quick setup and easy Bluetooth connection. Compact design that’s easy to keep within reach. Clear, professional-looking labels. App gives enough flexibility without being complicated, allows you to create QR codes as well as functioning barcodes. One thing to note: There’s a short learning curve with the app, but nothing that slows you down after the first couple uses. Bottom line: If you value organization and efficiency, this is one of those small tools that quietly improves how you operate day to day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
J
Verified Purchase
Jordan
Carnegie, US
★★★★★ 5
Perfect Label Maker
Color: White
I wasn’t expecting to love a label maker this much, but this thing has been incredibly useful. It’s easy to set up, simple to use, and prints clear, professional-looking labels every time. The print quality is sharp and the labels stick really well without peeling off.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
J
Verified Purchase
Jorden
Houston, US
★★★★★ 5
Easy to use
Color: Green
This label maker has been easy to use and has a nice variety of fonts to choose from. I like that you can align the text how you want and make it big or small. There are plenty of icons and templates to choose from. You can make your own templates as well which makes it convenient if you use a label often. It’s light weight and small so makes it easy to carry around or travel with it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026

recommand products