ZEX Nit. Sys. ZEX Pro St.Diesel

Marsoni

M251S

$348.48

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

ZEX Nit. Sys. ZEX Pro St.DieselThis kit features a huge nitrous solenoid and large 4AN nozzle feed line. This high flow hardware lets you select jets that will give from 50 300 additional horsepower. To properly time and control the nitrous injection, a boost pressureswitch is also used in tandem with the electronic wide open throttle switch. 50 300 HP nitrous shot capability; Activated electronically only at wide open throttle using the ZEX? patented TPS switch; Timing of the

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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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5 STARS: These shoes are awesome. I keep coming back for more. I have major foot problems, have tried all kinds of shoes, orthotics, and inserts... but believe it or not, these shoes work better than any of that stuff. I wear them daily. I buy lots of them, for home, for church, and I'm getting my first pair of J&M boots today, for winters in Indiana... Brrrr

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Reviewed in the United States on December 18, 2025

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tjw

San Leandro, US

★★★★★ 3

Way too narrow

Size: 9.5 Wide, Color: Burgundy Polished Full Grain

I ordered a wide in this shoe, but it was still way too narrow. I had to return them. Otherwise, it looked like a nice quality shoe.

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Reviewed in the United States on February 12, 2026

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Anthony C.

Whiting, US

★★★★★ 5

Penny loafers - best new old style

Size: 10, Color: Burgundy Polished Full Grain

These fit great. Real old school style reborn as original. Comfortable leather and looks great with jeans or dress pants.

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Reviewed in the United States on June 25, 2025

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zz top fan

Port Orchard, US

★★★★★ 5

Stylish and well made.

Size: 13 Wide, Color: Brown Crazy Horse

Good fit and well made. I have had good luck with Florsheim.

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Reviewed in the United States on May 21, 2026

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Amazon Customer

Chelsea, US

★★★★★ 5

The Berkley Flex

Size: 7, Color: Cognac Multi

Very nice shoes, very comfortable, very nice leather. When ordering though, they fit a half size smaller than your size, because they are a tight-fitting shoe.

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Reviewed in the United States on October 25, 2025