SKU: 22018648190

MACE PERFORMANCE 12MM UPPER MANIFOLD INSULATOR KIT FOR FORD LTD DC DF DL MPFI SOHC 12V 4.0L I6

Sale price$82.80 Regular price$92.00
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

MACE PERFORMANCE 12MM UPPER MANIFOLD INSULATOR KIT FOR FORD LTD DC DF DL MPFI SOHC 12V 4.0L I6Exclusive to Mace Engineering, here we have our design registered upper manifold insulator to suit the Ford ED to BF series, fitted with I6 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

Exclusive to Mace Engineering, here we have our design-registered upper manifold insulator to suit the Ford ED to BF series, fitted with I6 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 12mm manifold insulator will conduct an amazing 1655 times less heat.

Our composite material also exhibits high stiffness and compressive strength, can withstand temperatures up to nearly 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 Bolt pack
  • 1 X 12mm Upper manifold insulator
  • 1 X Silicone gasket maker

Vehicle Fitment Guide

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: 22018648190

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Krishna Sanchez
Boise, US
★★★★★ 5
Elegant clean look
Size: 8.5 Wide, Color: Black
Really nice! Good quality, just had to change size little bit big for my son
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Reviewed in the United States on April 28, 2026
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Hector R.
Alexandria, US
★★★★★ 1
You get what you pay for
Size: 13, Color: Black
First thing I noticed when unboxing was the Strong plastic smell coming out of the shoe I tried them on and Shoe runs small I bought size 13 and it was way to tight I ended up giving them to a co worker that use size 12 and fit him perfectly, he started walking and the rubber sole was leaving black marks all over the tile floor you could see exactly where he was stepping and left a trail he literally used them for less than 1 hr and ended up throwing them away, definitely you get what you pay for. Reminds me of payless shoes, cheap smelly plastic shoes.
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Reviewed in the United States on April 6, 2026
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A. M. Reinhart
Grantham, US
★★★★★ 5
Nice shoes
Size: 8, Color: Black
Perfect fit! My husband loves the shoes.
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Reviewed in the United States on May 18, 2026
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Juan Francisco Russell Estrada
Carnegie, US
★★★★★ 4
Smell
Size: 10.5 Wide, Color: Black
They feel comfortable. My only complaint is that they smell more like petroleum than a refinery—but what could I do? I needed them urgently.
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Reviewed in the United States on June 3, 2026
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Shari
Chelsea, US
★★★★★ 5
Nice for big & wide feet
Size: 13 Wide, Color: Black
True to size. Very nice looking too.
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Reviewed in the United States on May 20, 2026

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