Best 4150 Nitrous Plate Kit for Different Power Ranges

#1 · Best Overall

1. Nitrous Express Assassin 10lb

• Weight: 20 lb
• Dimensions: 10 x 11 x 28 in
• Package Weight: 10705 g

Best for: Single-plane distribution focus.

Why it ranks #1: Its 4150 Assassin kit lists 50–300 HP, includes a 10-pound bottle, and uses perimeter discharge ports intended to improve distribution on single-plane manifolds.

The Assassin plate puts nitrous and fuel discharge ports around its outer perimeter, a layout Nitrous Express says promotes distribution on single-plane manifolds. This 50–300 HP Stage 6 kit includes a 10-pound bottle, making it a fit to consider for buyers prioritizing the named spray pattern and range.

CNC machining integrates the nitrous and fuel discharge ports into the plate’s outer perimeter, rather than relying on a spray-bar layout. Nitrous Express describes the resulting perimeter spray pattern as improving nitrous-fuel distribution, particularly addressing problems commonly found with single-plane manifolds, including small- and big-block Fords. The listed 50–300 HP range gives a defined operating span, and the included 10-pound bottle identifies the package’s bottle capacity. Intake-specific advantages are the clearest reason to select this version.

Skip it if you need a stated ceiling of 500 HP; Nitrous Express NP504 lists a 100–500 HP range.

This suits a 4150 single-plane build, especially a small- or big-block Ford setup, where the Assassin’s perimeter distribution approach matters. The stated range tops out at 300 HP, and the kit includes a 10-pound bottle.

Listed on Amazon as: Nitrous Express – 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/10lb Bottle (67040-10)

#2 · Best 15lb Kit

2. Nitrous Outlet Weekend Warrior

• Weight: 32 lb

Best for: Broad-range wet plate kit.

Why it ranks #2: This complete 4150 wet plate kit includes a 15-pound bottle, braided stainless hose, gasket, hardware, and nitrous jetting listed for 100–350 HP.

A 100–350 HP jetting range gives the Nitrous Outlet Weekend Warrior a wider stated output window than many 4150 kits here. Its wet plate configuration, braided stainless hose, and 15-pound bottle make the package relevant to buyers seeking both a broad range and named plumbing components.

The .122-inch nitrous and .177-inch fuel solenoids are specified alongside the wet 4150-flange plate, clarifying the system’s listed fuel and nitrous hardware. Universal solenoid brackets and a braided stainless hose add named installation components, while the included gasket and hardware help define what arrives for assembly. The manufacturer says the plate is intended for dual-plane intakes and also fits 4150 single-plane intakes, providing useful intake-layout guidance. Its 15-pound bottle completes the listed package.

Skip it if you need a 100–500 HP system; Nitrous Express NP504 lists that wider range.

Choose this for a 4150 dual-plane or single-plane intake when the 100–350 HP jetting range, specified solenoids, and 15-pound bottle suit your setup. Its intake guidance is specific, so other manifold configurations are not established by the listing.

Listed on Amazon as: Nitrous Outlet Weekend Warrior 4150 Nitrous Plate System (15LB Bottle)

#3 · Best Conventional Kit

3. Nitrous Express Stage 6 10lb

Best for: Gasoline Stage 6 kit.

Why it ranks #3: The gasoline conventional Stage 6 system fits a 4150 setup, includes a 10-pound bottle, and lists a 50–300 HP range.

The Nitrous Express 30040-10 explicitly identifies gasoline use, a 4150 4-BBL Stage 6 plate system, and a 10-pound bottle. Its stated 50–300 HP range gives gasoline-focused buyers a clear operating span when comparing complete bottle-equipped kits.

The gasoline specification is a key distinction for buyers selecting among 4150 systems, while the 4-BBL designation identifies the listed intake format. Its 50–300 HP range offers a defined span, and the included 10-pound bottle makes this a listed system rather than a plate-only product. The source also names the Stage 6 plate system and a heavy-duty feature, but supplies no detailed plumbing or installation-component list. That limits what can be concluded about included hardware and setup workflow.

Skip it if you need a 500 HP ceiling; Nitrous Express NP504 lists a 100–500 HP range.

This suits a gasoline 4150 4-BBL buyer seeking a Stage 6 system with a 10-pound bottle and a 50–300 HP range. The listing does not detail plumbing contents, so review the package specifics before planning installation.

Listed on Amazon as: Nitrous Express 30040-10 4150 50-300 HP 4-BBL Gasoline Conventional Stage 6 Plate System with 10 lbs. Bottle

#4

4. Nitrous Express Hitman 10lb

• Weight: 21 lb

Best for: 4150 kit with 10-pound bottle.

Why it ranks #4: The 4150 Hitman system includes a 10-pound bottle and lists 100–200 HP, making its stated range narrower than several competing complete kits.

The Nitrous Express 40040-10 pairs a 4150 4-BBL Hitman plate system with a 10-pound bottle, giving buyers a defined kit configuration rather than a plate alone. Its stated 100–200 HP range suits builds seeking a more limited power window than the broader-range options in this roundup.

The 4150 4-BBL designation identifies the intake flange style, while the included 10-pound bottle means the listed package includes a bottle alongside the plate system. Its 100–200 HP range gives buyers a clear ceiling for comparing the kit with higher-output choices. The supplied listing does not detail solenoids, hoses, or installation hardware, so those specifics cannot be assessed here. At 21 pounds, the complete item also has a stated weight for handling and storage planning.

Skip it if you need a stated range above 200 HP; the Nitrous Express 30040-10 reaches 300 HP.

This suits a 4150 4-BBL buyer who wants a Hitman system and a 10-pound bottle in one listed package. Keep the stated 100–200 HP range in view, and check the listing for any installation components not specified here.

Listed on Amazon as: Nitrous Express 40040-10 4150 100-200 HP 4-BBL Hitman Plate System with 10 lbs. Bottle

#5 · Compact Bottle Kit

5. Nitrous Express Assassin 5lb

• Dimensions: 10 x 11 x 28 in
• Package Weight: 9072 g

Best for: Assassin kit with 5-pound bottle.

Why it ranks #5: It offers the Assassin plate’s perimeter discharge design and 50–300 HP range in a kit with a 5-pound bottle.

The Assassin’s perimeter-positioned nitrous and fuel ports define this 4150 Stage 6 kit, which Nitrous Express says addresses distribution challenges on single-plane manifolds. This version pairs the plate with a 5-pound bottle and a 50–300 HP range for buyers choosing that capacity.

The CNC-machined plate integrates nitrous and fuel discharge ports into its outer perimeter, creating the distinctive spray pattern Nitrous Express associates with improved nitrous-fuel distribution. The listing specifically highlights single-plane manifolds, including small- and big-block Fords, as applications where this approach addresses common problems. A 50–300 HP range defines the stated output span, while the included 5-pound bottle distinguishes this package from the otherwise similar 10-pound Assassin kit. That capacity is the main package-level choice between those versions.

Skip it if you want a larger bottle; the Nitrous Express 67040-10 Assassin kit includes a 10-pound bottle.

Pick this for a 4150 single-plane setup where the Assassin perimeter pattern is relevant and a 5-pound bottle fits your needs. The stated range ends at 300 HP, and bottle capacity distinguishes it from the 10-pound version.

Listed on Amazon as: Nitrous Express – 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/5lb Bottle (67040-05)

#6 · Highest Power Range

6. Nitrous Express Crossbar Pro-Power

• Dimensions: 0.00 x 0.00 x 0.00 in
• Package Weight: 6804 g

Best for: High-output crossbar kit.

Why it ranks #6: This 4150 single-entry Pro-Power crossbar kit lists 100–500 HP and includes a 5-pound bottle, though its smaller bottle may mean more frequent refills.

The 100–500 HP Pro-Power range sets the Nitrous Express 63540-05 apart from its 50–300 HP crossbar sibling. It pairs that higher stated ceiling with a 4150 single-entry billet crossbar plate and a 5-pound bottle, for buyers prioritizing range over bottle capacity.

The Pro-Power single-entry billet crossbar specifies a 4150 application, while the 100–500 HP range gives a broad stated output window for buyers comparing plate kits. Its 5-pound bottle is included, identifying the package capacity but making bottle size a meaningful consideration for use planning. The listing does not provide details about solenoids, hoses, or installation hardware, so those parts cannot be assumed from the kit title. Its clearest supplied distinction is the combination of a high range and smaller bottle.

Skip it if you want greater bottle capacity; the Nitrous Express 63040-15 includes a 15-pound bottle.

This suits a 4150 buyer prioritizing the 100–500 HP Pro-Power range in a single-entry crossbar kit. The included bottle is 5 pounds, so consider that capacity alongside your intended operating needs and the unspecified hardware details.

Listed on Amazon as: Nitrous Express – 4150 Single Entry Crossbar Nitrous Plate Kit Pro-Power (100-500HP) w/5lb Bottle (63540-05)

#7

7. Nitrous Express Billet Crossbar 15lb

• Dimensions: 0.00 x 0.00 x 0.00 in
• Package Weight: 2000 g

Best for: Longer-capacity crossbar kit.

Why it ranks #7: The 4150 single-entry billet crossbar kit lists 50–300 HP and includes a 15-pound bottle, the largest listed capacity among these Nitrous Express kits.

A 15-pound bottle distinguishes the Nitrous Express 63040-15 within its 50–300 HP single-entry billet crossbar kit family. The 4150 plate and stated power range give buyers the core application and output details, while the larger listed bottle capacity is the package’s clearest differentiator.

The single-entry billet crossbar plate is specified for a 4150 setup, making the listed flange application easy to identify. Nitrous Express gives the system a 50–300 HP range, defining its stated output window for comparison with higher-range kits. The included 15-pound bottle offers greater capacity than the 5-pound versions in the same crossbar line, which can shape bottle-service planning. The supplied details do not enumerate solenoids, hoses, or installation hardware, so buyers should not assume those specifics from the title alone.

Skip it if you need a stated ceiling of 500 HP; the Nitrous Express 63540-05 reaches that range.

Choose this 4150 crossbar kit if the 50–300 HP range and 15-pound bottle match your setup. Its capacity is the key distinction from smaller-bottle versions, while buyers needing a higher stated ceiling should consider another range.

Listed on Amazon as: Nitrous Express – 4150 Single Entry Billet Crossbar Nitrous Plate Kit (50-300HP) w/15lb Bottle (63040-15)

#8

8. Nitrous Express Billet Crossbar 5lb

• Dimensions: 0.00 x 0.00 x 0.00 in
• Package Weight: 2000 g

Best for: Compact-bottle crossbar kit.

Why it ranks #8: This 4150 single-entry billet crossbar kit lists 50–300 HP and includes a 5-pound bottle for buyers who prefer the smaller listed capacity.

The Nitrous Express 63040-05 combines a 4150 single-entry billet crossbar plate with a 5-pound bottle and a stated 50–300 HP range. That configuration gives buyers a specific smaller-bottle option within the brand’s crossbar lineup, while keeping the listed output span clear for build planning.

The single-entry billet crossbar identifies the plate style, and the 4150 designation identifies its listed flange application. Nitrous Express specifies a 50–300 HP range, helping buyers compare its output window with the 100–500 HP Pro-Power crossbar option. The included 5-pound bottle distinguishes this kit from larger-bottle versions and may suit buyers who prefer that capacity for their setup. The supplied details do not enumerate hose, solenoid, or installation hardware, so package contents beyond the stated components remain unclear.

Skip it if you want more bottle capacity; the Nitrous Express 63040-15 includes a 15-pound bottle.

This fits a buyer seeking a 4150 single-entry crossbar kit with a 5-pound bottle and a 50–300 HP range. Choose it for that stated capacity; the supplied details do not specify the other included plumbing or installation parts.

Listed on Amazon as: Nitrous Express – 4150 Single Entry Billet Crossbar Nitrous Plate Kit (50-300HP) w/5lb Bottle (63040-05)

#9

9. Nitrous Express ProPower Plate

• Weight: 0.27 g
• Dimensions: 18 x 12 x 2 in
• Package Weight: 0.5 kg

Best for: High-range ProPower plate.

Why it ranks #9: The standalone 4150 ProPower plate lists 100–500 HP and claims improved distribution and atomization, but the listing does not include a bottle.

A stated 100–500 HP range makes the Nitrous Express NP504 the broadest high-output plate option specified here. The 4150 4-BBL ProPower plate also emphasizes distribution and atomization, giving buyers focused plate-level features to weigh for a higher-output setup.

Nitrous Express describes the NP504 as providing superior distribution and outstanding atomization, benefits directed at delivering a more even mixture through the plate. Its 4150 4-BBL designation identifies the listed intake format, while the 100–500 HP range gives buyers a broad stated output span. The design is also described as having no spray bars to sag, split, or break, removing those specific spray-bar failure modes from the stated construction. This listing names a plate, not a bottle-equipped kit.

Skip it if you want a complete system with a bottle; the Nitrous Express 63540-05 includes a 5-pound bottle.

This plate suits a 4150 4-BBL buyer seeking the listed 100–500 HP range and a spray-bar-free design. Account for the plate-only listing: a bottle and other kit components are not identified as included.

Listed on Amazon as: Nitrous Express NP504 4150 100-500 HP 4-BBL ProPower Plate

#10

10. Bonbo 4150 Stinger Plate

• Weight: 1.73 lb

Best for: Single-plane stinger plate.

Why it ranks #10: It is a 4150 plate for single-plane carbureted or EFI intakes, but the listing gives no horsepower range and does not identify a bottle or complete kit.

A CNC-machined cone-shaped stinger projects into the intake throat center, defining Bonbo’s 4150 plate around mixture distribution. The listing targets single-plane carbureted and EFI manifolds, with separate 16-port nitrous and fuel discharge patterns intended to support even atomization across the intake.

The stated universal 4150 flange fitment covers standard four-barrel single-plane carbureted or EFI intake setups for Chevy, Ford, and Mopar V8 engines. Its cone-shaped stinger reaches into the throat center, and the listing says this corrects mixture distribution and air/fuel tuning issues. Sixteen dedicated nitrous ports and sixteen dedicated fuel ports provide equal 360-degree atomization. At 1.73 pounds, the plate is notably specified as a plate rather than a complete kit with a bottle or other system components.

Skip it if you want a complete bottle-equipped system; Nitrous Express 40040-10 includes a 10-pound bottle.

Consider this plate for a standard 4150 single-plane carbureted or EFI V8 intake when its central stinger and 360-degree ports address your distribution needs. It is not presented as a complete bottle-equipped nitrous kit.

Listed on Amazon as: 4150 Nitrous Plate 00-44500 for Carbureted & EFI Single Plane Intakes