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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
NOS 05168NOS GM EFI Nitrous System Fits 97-04 LS 4.8-5.3-5.7-6.0 With 3 Bolt TBOverview: The NOS LS1 plate system uses a billet plate with no spray bars. This unique design allows better atomization which prevents fuel puddles in your manifold and provides the best cylinder to cylinder distribution for maximum power. This is no ordinary low HP kit. The plate and solenoids supplied will easily support 200 HP. Features: Adjustable to 200 HP Includes required hardware for most applications On demand power doesn''t affect daily
Overview:
The NOS LS1 plate system uses a billet plate with no spray bars. This unique design allows better atomization which prevents fuel puddles in your manifold and provides the best cylinder to cylinder distribution for maximum power. This is no ordinary low HP kit. The plate and solenoids supplied will easily support 200 HP.
Features:
- Adjustable to 200 HP
- Includes required hardware for most applications
- On demand power doesn''t affect daily driving characteristics
- Best "horsepower per dollar" modification available
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1998 - 2002 | Pontiac | Firebird | 3.9/8 V | |
| 1997 - 2004 | Chevrolet | Corvette | 3.9/8 V | |
| 1998 - 2002 | Chevrolet | Camaro | 3.9/8 V |
Specs:
| Adjustable | Yes |
|---|---|
| Bottle Color | Blue |
| Bottle Included | Yes |
| Bottle Material | 6061 T-6 Aluminum |
| Bottle Size | 10 lb |
| Bottle Valve | Super Hi-Flo |
| Bracket Material | Steel |
| Brackets Included | Yes |
| Brand | NOS |
| Color | Blue |
| Delivery Style | EFI Spacer Plate |
| Emission Code | 4 |
| Feed Line Size | 6AN |
| Fuel Solenoid | Cheater |
| Included Jetting Horsepower | 100, 125, 150 |
| Jet Sizes Included | 100, 125, 150 hp |
| Jet Style | Flare |
| Material | 6061 T-6 Aluminum |
| Max Horsepower | 200 |
| Nitrous Bottle Capacity | 10 lbs |
| Nitrous Solenoid | Super ProShot |
| Number of Solenoids | 2 |
| Plate Bolt Pattern | 3 bolt |
| Plate Diameter | 80 mm |
| Plate Flange | GM 3-Bolt LS |
| Plate Height | 1/2 inch |
| Plate Included | Yes |
| Plate Thickness | 1/2 inch |
| Product Type | Nitrous System |
| Solenoid Top Cover Color | Blue/Red |
| Style | Wet |
| System Style | Wet |
| Warning | California Proposition 65 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1615 reviews
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Product Reviews
★★★★★ 5
Great buy
Size: 11, Color: Tan
Great fit comfortable look good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
★★★★★ 5
Great shoes
Size: 14 Wide, Color: Black
My shoes look good and feel good and now I’m going to purchase the brown pair I saw
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 4
Don’t buy for restaurant industry
Size: 10.5, Color: Black, Size: 10.5, Color: Black
Good looking shoes, fairly comfortable and good value based on the description shared, so I don’t feel it’s fair to rate them lower than 4 stars. I had high hopes for them based on previous reviews from others saying they wore them in the food and beverage industry that mentioned their quality and durability, however I strongly recommend looking elsewhere if you do. I purchased these to wear working in a full service upscale restaurant and in less than two months have managed to have torn the material on the middle exterior section and the bottoms of the shoes are already completely worn down. Good design, but the durability needs to be improved if they’re to hold up for that industry.
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Reviewed in the United States on July 18, 2025
★★★★★ 1
DO NOT BUY (lasted less than 7 months)
Size: 11, Color: Black, Size: 11, Color: Black
I bought these for work as a bartender in August of 2025. By December, the tops were scuffed, frayed, and peeling beyond repair, and by February, the soles were coming off. I’ve never had a pair of shoes with such low quality.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Most comfortable shoes, right out of the box!
Size: 8.5, Color: Cognac Napa Leather
Oh my! So, my ordering of shoes online has been hit or miss - 1/2 size too big or too small; too wide or not wide enough. Enter these Marc Joseph shoes… such a game changer. They fit like a glove, exceptionally comfortable, and easy to slip in and out of. I like them so much that I am shopping for another pair. So far, the size, quality, fit, feel, look, and comfort make this pair my dedicated first pick. Btw, I have been wearing them for six hours and they are still very comfortable! I highly recommend these shoes.
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Reviewed in the United States on September 28, 2025