Nitrous Express Instaboost EFI Jet Pack

Marsoni

M251S

$107.54

Get it in 3 business days with 1 day shipping. Friday, May 29

Nitrous Express Instaboost EFI Jet PackNX Jets are manufactured on CNC equipment, and are guaranteed to be within . 0005 of specified jet size. In recent testing, using the same jet size, NX jets out flowed the competition by 35%! That's right 35% more flow through the same orifice, how you ask? The NX jet was designed to be more than just a hole in a piece of brass; its contoured inlet and multi stepped outlet allow turbulence free flow with no restrictions. Warranty Installation

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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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Good stuff. I did a lot of work on my 91 Toyota Land Cruiser 3FE. I did the inside and outside doors, as well as the under-hood area, with some extra work. I like this stuff. It sticks down good but you have to clean your surface so there's a good grip. I think these are going to do well for noise cancellation. The deadening material does well with absorbing vibrations too. But the install roller tools it will come in handy. Trust me trying to do it by hand is not worth it.

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Reviewed in the United States on June 6, 2026

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Charlie J

Alexandria, US

★★★★★ 4

Good quality

Size: 10 sqft

I wish it was a little better but it definitely works great and look good for how cheap it is

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Reviewed in the United States on January 23, 2026

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R. Selberg

Charlottesville, US

★★★★★ 5

Works well

Size: 10 sqft

Worked great at a budget price. I used it to damp a fiberglass loudspeaker horn. Easy to work with too.

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Reviewed in the United States on May 8, 2026

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Devan

Pawtucket, US

★★★★★ 5

Good material but bites back

Size: 20 sqft

Very good product for my rear trunk and backseat on my mustang. I would recommend some type of gloves due to the foil itself when placing down will cut up your hands and fingers. Overall good product for its price.

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Reviewed in the United States on May 23, 2026

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K.M

Port Orchard, US

★★★★★ 5

Great and light!

Style: 30 pcs

Worked out great. Good stuff and sound deadens the vehicle without adding a ton of weight.

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Reviewed in the United States on June 3, 2026