Nitrous Outlet GM 1985-1992 TPI/1992-1997 LT1 Twin 58mm Plate Conversion (50-200 HP)

Nitrous Outlet GM 1985-1992 TPI/1992-1997 LT1 Twin 58mm Plate Conversion (50-200 HP)

Marsoni

M251S

$188.00

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

Nitrous Outlet GM 1985-1992 TPI/1992-1997 LT1 Twin 58mm Plate Conversion (50-200 HP)Flow Up To 400 HP Billet Aluminum Plate All Hardware, Gaskets, and Jetting Included E85 Compatible With Different Jetting Precision Atomization Jetting Included For 50 100 150 200 HP Superior Atomization. This injection plate has 6 specially designed nitrous and fuel discharge ports that completely saturate the air intake charge with the best atomized mixture possible. For higher horsepower levels proper distribution into the air stream is critical

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In MY experience, this has been fantastic, spouses car is a 200k+ mileage Kia shortage, which I mean, it’s always burned oil, even the manual said normal operation can burn 1qt per 1,000 miles. Either way, i was adding oil a lot. At least 2 quarts a month or more. After running this oil, I have only added 1.5 quarts in over 2 months. Results obviously not typical, but in my experience, this stuff works. I also use the restore and protect Valvoline on my car, with great results. Scoped it after a few full oil changes and engine looks clean. Great value for what it potentially will do.

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Reviewed in the United States on March 2, 2026