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- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 26 - Aug 31
For Your Every Summer RSVP, with Code: SUMMER15
Description
DEI Form-A-Shield - 42in x 48in - Non PSAForm A Shield(TM) solves the problem of needing a direct contact, extreme heat barrier. Capable of withstanding direct heat of up to 1400F+, Form A Shield(TM) was designed to provide the best possible heat protection in areas where high temperatures are always present and problematic. Form A Shield(TM) can be applied to exhaust headers, manifolds, turbo housings, and downpipes dramatically reducing radiant exhaust temperatures. Formed from 10 mil
Form-A-Shield(TM) solves the problem of needing a direct contact, extreme heat barrier. Capable of withstanding direct heat of up to 1400°F+, Form-A-Shield(TM) was designed to provide the best possible heat protection in areas where high temperatures are always present and problematic. Form-A-Shield(TM) can be applied to exhaust headers, manifolds, turbo housings, and downpipes dramatically reducing radiant exhaust temperatures. Formed from 10 mil dimpled aluminum bonded to a high temperature rated basalt thermal barrier material, Form-A-Shield(TM) can be applied directly to hot surfaces helping to lower under hood temperatures while keeping more heat in the exhaust system. Extremely pliable and forms to many shapes and configurations Durable and resistant to oil and chemical spills Withstands direct heat up to 1400°F+ Superior insulator anywhere near the path of exhaust pipes Can be applied directly to hot surfaces Ideal for firewalls, exhaust manifolds, under-vehicle, floor pans, oil tank box areas, transmission tunnels, wrapping fuel cells, under hoods & more Fasten with straps, clamps or DEI Locking Ties No adhesive backing NOTE: Use DEI Adhesive Spray with Form-A-Shield on non-hot areas to serve as a heat barrier / reflectorShipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.1 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
A reliable set of spark plugs.
They’re made in Germany, what else can you say
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Work as well as the NGK's
Bought for a 2016 Mazda 6, I had NGK's in it for 5 months and had misfires, didnt have the money to throw more NGK's at it for troubleshooting. Bought these to try and they work great so far.
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Reviewed in the United States on April 29, 2026
★★★★★ 4
Faulty plug? Otherwise great set
Definitely better than the old plugs that probably had 80k miles on them.
The one star off is because I had a misfire after installing. Not sure if I damaged the plug or what, but a reinstall didn't fix the misfire. In my genius, I rushed to try to gap it and ended up breaking the iridium tip. Put the old plug into cylinder 3 (where the misfire was) and it was fine.
Gonna have to get a new single tomorrow at my local shop, but a bit frustrating to get a misfire after install.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Upgrade from OEM
After seeing a quite ludicrous $403 quote to change 4 spark plugs in a Mazda3 I decided to show my son how easy it is.
These were an upgrade from OEM parts. They were gapped perfectly for the car.
They took 20mins to fit and work fine.
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Reviewed in the United States on February 11, 2026
★★★★★ 5
Very good
The best quality. Runs like new again.
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Reviewed in the United States on March 12, 2026
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