Nitrous Express Nitrous & Water Injection Kit w/Billet LT4 Supercharger Lid w/12lb Bottle

Nitrous Express Nitrous & Water Injection Kit w/Billet LT4 Supercharger Lid w/12lb Bottle

Marsoni

M251S

$2773.59

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

Nitrous Express Nitrous & Water Injection Kit w/Billet LT4 Supercharger Lid w/12lb BottleSKU: 20939BMF 12 UPC: 653374976442 Nitrous Express Billet LT4 Supercharger Lid Nitrous & Water Injection Kit w 12lb Bottle The Nitrous Express Billet LT4 Supercharger Lid Nitrous & Water Injection Kit is designed specifically for GM LT4 supercharged engines, including the Cadillac CTS V, Chevrolet Camaro ZL1, and Corvette Z06. This complete bolt on system replaces the stock supercharger lid with a precision machined billet aluminum lid featuring

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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I used this as a topper to butyl sound deadening material on the floor and side panels and am very pleased. It was generally easy to use. It is very sticky and cannot be easily repositioned as the foam will separate from the sticky side if you try, but its not a big deal. I have yet to run the car but the panels are much quieter when tapped on vs just the butyl alone, and this stuff weighs almost nothing.

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Reviewed in the United States on February 17, 2026

Verified Purchase

Bret Jackson

Omaha, US

★★★★★ 5

Good deadening

Model: 197mil 31 sqft Car Sound Deadening Mat

This sound deadening works well and has good adhesion .

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Reviewed in the United States on May 18, 2026

Verified Purchase

Mags

New York, US

★★★★★ 5

Easy to install and great value.

Model: 197mil 31 sqft Car Sound Deadening Mat

Very easy to cut and install with the rollers I bought separately. It adheres well even though I was installing it when the weather was closer to 40-50 degrees. Definitely helps to deaden the sound from the bare sheet metal.

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Reviewed in the United States on April 2, 2026

Verified Purchase

Chuck P

Whiting, US

★★★★★ 1

Garbage

Model: 197mil 31 sqft Car Sound Deadening Mat

Straight garbage, I tried to cut corners on cost of building an spl car and should have stuck with dynamat or something like that. This is NOT for sound deadening…… Garbage product!!!

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Reviewed in the United States on June 5, 2026