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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We offer a 30-day return/exchange service after receiving.
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Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly. Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration. Ended up running self tapping screws thru parts to complete assembly.

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Reviewed in the United States on February 26, 2024

Verified Purchase

Carl L. Bradley

Battle Creek, US

★★★★★ 1

Kinda flimsy…

Thought the assembly was metal, it’s some kind of PVC.

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Reviewed in the United States on September 22, 2025

Verified Purchase

Hilda