SKU: 22213863107

MACE PERFORMANCE 12MM MANIFOLD INSULATOR FORD LTD DA DC DF DL AU SOHC INTECH VCT 3.9L 4.0L I6

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Description

MACE PERFORMANCE 12MM MANIFOLD INSULATOR FORD LTD DA DC DF DL AU SOHC INTECH VCT 3.9L 4.0L I6Exclusive to Mace Engineering, our design registered manifold insulator to suit Ford 6 cylinder engines from EA to AU What are manifold insulators and what do they do? Manifold insulators are a thermal insulating spacer that mounts between your upper and lower 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

Exclusive to Mace Engineering, our design-registered manifold insulator to suit Ford 6 cylinder engines from EA to AU

 

What are manifold insulators and what do they do?

Manifold insulators are a thermal insulating spacer that mounts between your upper and lower 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 then our composite material!

Also, with gaskets often made out of steel (20 W/m*K thermal conductivity), placed between the upper and lower manifolds, replacing a .5mm gasket with a 12mm manifold insulator will conduct an amazing 1087 times less heat (yes, that's over 100,000% reduction!). What this basically means is that it becomes very difficult for the engine to heat up the manifold, which ultimately means more power for extended periods (i.e. considerably fewer heat soak issues, which is especially noticeable on turbocharged cars)!

Our composite material also exhibits high stiffness and compressive strength, can withstand temperatures up to nearly 150C, 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:

  • Produces a cooler intake and intake manifold charge resulting in more power.
  • A cooler intake charge also reduces the tendency for detonation, meaning more ignition timing or boost for more power.
  • Improvelow endtorque by increasing runner length.
  • Better fuel economy.
  • Reusable over and over again.
  • No undesirable side effects.

 

Contents:

  • 01 X Performance manifold insulator
  • 01 X Bolt pack
  • 01 X Gasket maker

Vehicle Fitment Guide

 

Contents:

  • 01 X Performance manifold insulator
  • 01 X Bolt pack
  • 01 X Gasket maker

 

What about Installation?

Installation is verystraight forward, requiring only the removal of your inlet manifold to install the manifold insulator.

 

Note: Does not include intake manifold.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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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]
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SKU: 22213863107

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Giovanna Surace
Los Angeles, US
★★★★★ 5
Perfect for College Students!
Color: Grey
I first bought this chair back in August of 2023. I used it nearly everyday for several hours. The chair just broke recently- the metal frame bent on the bottom of the chair (probably due to long term sitting and leaning to one side). This a great chair for college students looking for a more affordable but comfortable chair. The wheels move nice and smooth, the arm rests move up and down, and the back mesh of the chair is supportive, comfortable and breathable. To me, the seat of the chair is slightly bigger than a normal desk chair. It reclined decently far back and had a wide range of height adjustments. I just reordered this chair because I love it so much! I recommend this for anyone looking for a affordable, but comfortable desk chair!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2026
M
Verified Purchase
me
Alexandria, US
★★★★★ 5
as great as any 400 $ chair for so much less
Color: Black
This chair is wonderful. Easy to assemble, great home office size, not to overwhelming, very soft seating , great back support, adjustable in height and back. This chair meets all the expectation of a great chair.
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Reviewed in the United States on May 19, 2026
A
Verified Purchase
Amazon Customer
Whiting, US
★★★★★ 5
This is the chair! Stop looking! You found it!
Color: Grey
Seriously, it's just a great chair. It's comfy, it works, it's well made and it's a fantastic price. I picked this up after trying a "criss cross" style chair that simply was NOT working for everyday, all day home office work. This chair is great and I love that the arms can go up, which turns it into a great art chair as well! The back support is solid, although it's not cushioned at all so you may find putting a little lumbar pillow will help (it hasn't bothered me but over time the elasticity of the mesh has worn a bit) It was very easy to put together and I've been using it everyday, for 8-10 hours a day for several months now. For price you can't beat it. It's also wide enough of a seat I can sit cross crossed.
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Reviewed in the United States on June 26, 2025
V
Verified Purchase
Valerie Gaston
Battle Creek, US
★★★★★ 3
Cheap and pretty comfortable, but poor adjustment functions.
Color: Black
Chair is pretty comfortable, wheels are solid and it holds height well. Biggest issue is the lean lock, even when engaged the chair does not hold an upright position, so if you're like me and prefer sitting relatively straight, this chair does not offer much support when doing so. Not bad for the price, but I would generally look elsewhere unless you don't care much for adjustment.
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Reviewed in the United States on February 11, 2026
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Verified Purchase
Malckiah
Bozeman, US
★★★★★ 4
Pretty nice. Good price for a good quality chair.
Color: Black
Nice overall. Decent back support, but not really much going on there. Very sturdy chair and is comfortable. The adjustments are just enough to make it good. I would buy it again. rolls great. Easy to put together. perfect adjustable height. It works for my son who is around 5', my wife who is 5' 3 and also me and I am 5' 10.
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Reviewed in the United States on July 22, 2025

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