Best Carburetor Main Jets Kits for Peak Engine Power

Looking for the best carburetor main jets kits to enhance your engine’s performance? We’ve compiled a list of 10 top-rated kits from trusted brands, offering durable brass jets and wide size ranges to help you achieve the perfect fuel mix and elevate your ride.

Carburetor main jet kits are essential for tuning your engine. They help you get the right fuel mix, boosting performance and efficiency. Whether you’re fixing a bike or upgrading an ATV, these kits make it simple.

Choose the right kit for your carburetor. Check compatibility before buying. Save time and money with a perfect fit.

With top brands like YAMAKATO, Strongthium, and CQSPMOTO, you’re in good hands. These kits offer durable brass jets and wide size ranges. Start tuning today and feel the difference in your ride!

List of Top 10 Carburetor Main Jets Kits

Image Title Best For Price
YAMAKATO Aftermarket 22pcs Carburetor Jet Kit w/11 Main Jets and 11 Slow Jet for Nibbi Honda PWK Keihin Yamaha OKO CVK PWM Type YAMAKATO Aftermarket 22pcs Carburetor Jet Kit w/11 Main Jets and 11 Slow Jet for Nibbi Honda PWK Keihin Yamaha OKO CVK PWM Type

This kit is perfect for riders and DIY tuners who want smooth, strong engine performance with the right jet sizes ready to go. It’s great for anyone who loves simple, fast upgrades that keep their bike running clean and steady.

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40PCS Carburetor Main Jet Slow Pilot Jet Kit for PWK Keihin OKO CVK Crab,Replace #SCL-2018090002-ZH-T-01/02 SCL-2018090001/03-ZH-T-01 40PCS Carburetor Main Jet Slow Pilot Jet Kit for PWK Keihin OKO CVK Crab,Replace #SCL-2018090002-ZH-T-01/02 SCL-2018090001/03-ZH-T-01

This 40-piece carburetor jet kit is perfect for anyone tuning or repairing their motorcycle, ATV, or scooter. It’s ideal for those with PWK, Keihin, or OKO carburetors who need precise jet sizes for better performance.

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YAMAKATO 16pcs Carburetor Jet Kit Main Jets for Mikuni VM22 VM24 VM26 125cc 150cc 200cc 250cc for Mini Bike Dirt Bike Pit Bike ATV 88 90 95 98 100 105 110 115 120 125 130 135 140 145 150 155 YAMAKATO 16pcs Carburetor Jet Kit Main Jets for Mikuni VM22 VM24 VM26 125cc 150cc 200cc 250cc for Mini Bike Dirt Bike Pit Bike ATV 88 90 95 98 100 105 110 115 120 125 130 135 140 145 150 155

This YAMAKATO 16pcs Carburetor Jet Kit is perfect for anyone who owns a mini bike, dirt bike, pit bike, ATV, or UTV with a Mikuni VM22, VM24, or VM26 carburetor. It’s ideal for tuning your engine to run smoothly and efficiently.

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36-181 Carburetor Metering Main Jet Assortment Kit #64-99 (2 Each of Sizes) Fit for Holley Carb 1/4''-32 Gas Main Carburetors 2010 2300 4010 4011 4150 4160 4500 Models 36-181 Carburetor Metering Main Jet Assortment Kit #64-99 (2 Each of Sizes) Fit for Holley Carb 1/4”-32 Gas Main Carburetors 2010 2300 4010 4011 4150 4160 4500 Models

This 36-181 Carburetor Metering Main Jet Assortment Kit is perfect for car enthusiasts and mechanics who need precise tuning for their Holley carburetors. It’s ideal for anyone working on models 2010, 2300, 4010, 4011, 4150, 4160, or 4500.

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Strongthium 48 Pcs Carburetor Jet Kit for Mikuni Main & Pilot Slow Jet VM22/210 VM28/486 VM4/042 N100.604 Strongthium 48 Pcs Carburetor Jet Kit for Mikuni Main & Pilot Slow Jet VM22/210 VM28/486 VM4/042 N100.604

This Strongthium 48 Pcs Carburetor Jet Kit is perfect for anyone tuning their motorcycle, ATV, or off-road vehicle. It’s ideal for Mikuni carb users who need precise jet sizes for better performance.

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Strongthium Carburetor Main Jet Kit for Nibbi Keihin CVK PE PZ GY6 99101-393 99101-GHB-000 95# ~128# Mikuni 19.201 Strongthium Carburetor Main Jet Kit for Nibbi Keihin CVK PE PZ GY6 99101-393 99101-GHB-000 95# ~128# Mikuni 19.201

This Strongthium Carburetor Main Jet Kit is perfect for motorcycle enthusiasts who need a reliable and versatile upgrade. It’s ideal for riders with Honda, Kawasaki, Suzuki, or GY6 engines, offering precise tuning for better performance.

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CQSPMOTO Holley Carburetor Main Jet for Carburetor 1/4-32 Gas Main Jet Assortment Kit 60 61 62 63 64 65 66 67 68 69 Holley Quick Fuel Jet, 2 pcs per size, 10 sets in total, Thread size: 1/4 CQSPMOTO Holley Carburetor Main Jet for Carburetor 1/4-32 Gas Main Jet Assortment Kit 60 61 62 63 64 65 66 67 68 69 Holley Quick Fuel Jet, 2 pcs per size, 10 sets in total, Thread size: 1/4″-32

This kit is for men who fix cars. It helps you tune your engine.

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YGQ Carburetor Jet Kit for Mikuni Main & Pilot Slow Jet 42 Pcs N100.604 VM28/486 VM4/042 VM22/210 YGQ Carburetor Jet Kit for Mikuni Main & Pilot Slow Jet 42 Pcs N100.604 VM28/486 VM4/042 VM22/210

This kit is perfect for bike and ATV owners who need a wide jet range for Mikuni carbs. It is also great for shop users who want easy tune-up parts for 2-stroke and 4-stroke rides.

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SYOWADA 25 Pcs Carburetor Main Jet Kit Replacement for Mikuni VM22 VM24 VM26 Carburetor Used on 125cc 150cc 200cc 250cc Engine Motorcycle Dirt Pit Bike (25 PCS) SYOWADA 25 Pcs Carburetor Main Jet Kit Replacement for Mikuni VM22 VM24 VM26 Carburetor Used on 125cc 150cc 200cc 250cc Engine Motorcycle Dirt Pit Bike (25 PCS)

This SYOWADA 25 Pcs Carburetor Main Jet Kit is perfect for motorcycle enthusiasts and DIY lovers. It’s ideal for improving your bike’s performance if you have a 125cc, 150cc, 200cc, or 250cc engine.

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YAMAKATO Aftermarket 33pcs Carburetor Jet Kit w/ 11pcs Slow Pilot Jets and 22pcs Main Jets for Honda PWK Keihin OKO CVK KOSO PE PWM Yamaha Mikuni Carb Upgrade and Rebuild YAMAKATO Aftermarket 33pcs Carburetor Jet Kit w/ 11pcs Slow Pilot Jets and 22pcs Main Jets for Honda PWK Keihin OKO CVK KOSO PE PWM Yamaha Mikuni Carb Upgrade and Rebuild

This kit is perfect for riders who want a simple, reliable way to tune or rebuild their carb. It’s great for anyone upgrading pit bikes, dirt bikes, mini bikes, scooters, ATVs, or Go Karts.

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Detailed Reviews

Discover the top 10 Carburetor Main Jets Kits in this expert-reviewed guide. Each kit is handpicked for performance, durability, and value, ensuring you find the perfect match for your needs. Whether you’re tuning a dirt bike, ATV, or street bike, these kits offer precise control and easy installation. Dive in to find the best fit and upgrade your engine with confidence.

1. YAMAKATO Aftermarket 22pcs Carburetor Jet Kit w/11 Main Jets and 11 Slow Jet for Nibbi Honda PWK Keihin Yamaha OKO CVK PWM Type

YAMAKATO Aftermarket 22pcs Carburetor Jet Kit w/11 Main Jets and 11 Slow Jet for Nibbi Honda PWK Keihin Yamaha OKO CVK PWM Type

The YAMAKATO Aftermarket 22pcs Carburetor Jet Kit is a must-have for tuning your carburetor. It includes 11 main jets and 11 slow jets, giving you plenty of options. This kit works with PWK, CVK, and PE carburetors, plus brands like OKO, KOSO, and Polini.

Made of durable brass, these jets are rust-resistant and easy to install. Check your engine model and stock carb before ordering to ensure a perfect fit.

The slow jets range from 32 to 58, and the main jets from 100 to 145. Verify the thread sizes (M6x0.75 and M5x0.8) to match your needs.

Pros Cons
  • 22-piece kit includes 11 main jets and 11 slow jets.
  • Brass material ensures rust-free and durable performance.
  • Easy installation for quick upgrades to your carburetor.
  • Wide range of jet sizes for precise tuning and optimal fit.
  • May not fit all carburetor types.
  • Jet sizes can be hard to identify.
  • Double-check fitment before ordering.

Perfect For:

This kit is perfect for riders and DIY tuners who want smooth, strong engine performance with the right jet sizes ready to go. It’s great for anyone who loves simple, fast upgrades that keep their bike running clean and steady.

Ready to Purchase?

2. 40PCS Carburetor Main Jet Slow Pilot Jet Kit for PWK Keihin OKO CVK Crab,Replace #SCL-2018090002-ZH-T-01/02 SCL-2018090001/03-ZH-T-01

40PCS Carburetor Main Jet Slow Pilot Jet Kit for PWK Keihin OKO CVK Crab,Replace #SCL-2018090002-ZH-T-01/02 SCL-2018090001/03-ZH-T-01

This 40-piece carburetor jet kit is made of high-quality solid brass. It includes 30 main jets and 10 slow pilot jets. Perfect for PWK Keihin CVK PE and other carburetors.

The slow pilot jets come in sizes 32 to 55. The main jets range from 100 to 178. Check your carburetor size before buying.

This kit is a great replacement for specific part numbers. It works well with PWK 21mm-42mm carburetors. Not for CV, VE, or CVK above 3cm.

Pros Cons
  • 40-piece kit offers complete carburetor tuning for peak performance.
  • High-quality brass ensures durability and reliability.
  • Wide range of sizes fits multiple carburetor types effortlessly.
  • Easy replacement for common part numbers, saving time and effort.
  • Not for all carbsCV, VE, CVK over 3cm won’t fit.
  • No instructionsMight confuse first-time users.
  • Limited sizesSome jets may not match your needs.

Perfect For:

This 40-piece carburetor jet kit is perfect for anyone tuning or repairing their motorcycle, ATV, or scooter. It’s ideal for those with PWK, Keihin, or OKO carburetors who need precise jet sizes for better performance.

Ready to Purchase?

3. YAMAKATO 16pcs Carburetor Jet Kit Main Jets for Mikuni VM22 VM24 VM26 125cc 150cc 200cc 250cc for Mini Bike Dirt Bike Pit Bike ATV 88 90 95 98 100 105 110 115 120 125 130 135 140 145 150 155

YAMAKATO 16pcs Carburetor Jet Kit Main Jets for Mikuni VM22 VM24 VM26 125cc 150cc 200cc 250cc for Mini Bike Dirt Bike Pit Bike ATV 88 90 95 98 100 105 110 115 120 125 130 135 140 145 150 155

This YAMAKATO kit includes 16 main jets. They fit Mikuni VM22, VM24, and VM26 carburetors perfectly.

Each jet is marked with its size for easy use. The kit covers sizes from 88 to 155. It comes in a handy nylon bag for storage.

Pros Cons
  • All‑size kit covers 88–155 jets.
  • Easy 1‑click fit for VM22‑VM26 carbs.
  • Precise jet sizes shown for quick selection.
  • Comes compact nylon bag for easy storage.
  • Boost performance on dirt & mini bikes.
  • Limited to specific VM series carburetors, not universal.
  • No instructions included, DIY skills required.
  • Nylon bag packaging, not durable for long-term storage.

Perfect For:

This YAMAKATO 16pcs Carburetor Jet Kit is perfect for anyone who owns a mini bike, dirt bike, pit bike, ATV, or UTV with a Mikuni VM22, VM24, or VM26 carburetor. It’s ideal for tuning your engine to run smoothly and efficiently.

Ready to Purchase?

4. 36-181 Carburetor Metering Main Jet Assortment Kit #64-99 (2 Each of Sizes) Fit for Holley Carb 1/4”-32 Gas Main Carburetors 2010 2300 4010 4011 4150 4160 4500 Models

36-181 Carburetor Metering Main Jet Assortment Kit #64-99 (2 Each of Sizes) Fit for Holley Carb 1/4''-32 Gas Main Carburetors 2010 2300 4010 4011 4150 4160 4500 Models

This jet kit gives you clear, simple tuning power. You get 72 brass jets in sizes 64–99. Each one is easy to spot and easy to use.

They fit many Holley models for smooth setup. The case keeps every jet in its own marked spot. You get fast access and clean storage.

The brass build is strong and steady. Check your model before you buy.

Pros Cons
  • Wide size range fits many carb needs.
  • Strong brass build for long life.
  • Easy to use for fast fuel tuning.
  • Precise fit for top engine flow.
  • Value kit with two of each size.
  • May not fit all custom setups
  • Small parts can be easy to misplace
  • Case markings may be hard to read

Perfect For:

This 36-181 Carburetor Metering Main Jet Assortment Kit is perfect for car enthusiasts and mechanics who need precise tuning for their Holley carburetors. It’s ideal for anyone working on models 2010, 2300, 4010, 4011, 4150, 4160, or 4500.

Ready to Purchase?

5. Strongthium 48 Pcs Carburetor Jet Kit for Mikuni Main & Pilot Slow Jet VM22/210 VM28/486 VM4/042 N100.604

Strongthium 48 Pcs Carburetor Jet Kit for Mikuni Main & Pilot Slow Jet VM22/210 VM28/486 VM4/042 N100.604

The Strongthium 48 Pcs Carburetor Jet Kit is a must-have for tuning your engine. It works with Mikuni carbs and fits many 2-stroke and 4-stroke vehicles. This kit has main jets, pilot jets, and more.

It’s compatible with Suzuki, Kawasaki, Yamaha, Honda, and Polaris models. The kit includes large round and hex main jets for better performance.

Use it for street, ATV, or offroad applications. It’s easy to install and works with Mikuni HS40, HSR, RS, TM, and VM carbs.

Pros Cons
  • 48-piece kit for precise carb tuning.
  • Fits Mikuni VM, TM, HS, HSR, RS carbs.
  • Wide jet sizes for 2-stroke and 4-stroke engines.
  • Compatible with Suzuki, Kawasaki, Yamaha, Honda, Polaris.
  • No instructions or guides included for installation.
  • Not compatible with all carburetor models or brands.
  • Many unused jets may be leftover after tuning.

Perfect For:

This Strongthium 48 Pcs Carburetor Jet Kit is perfect for anyone tuning their motorcycle, ATV, or off-road vehicle. It’s ideal for Mikuni carb users who need precise jet sizes for better performance.

Ready to Purchase?

6. Strongthium Carburetor Main Jet Kit for Nibbi Keihin CVK PE PZ GY6 99101-393 99101-GHB-000 95# ~128# Mikuni 19.201

Strongthium Carburetor Main Jet Kit for Nibbi Keihin CVK PE PZ GY6 99101-393 99101-GHB-000 95# ~128# Mikuni 19.201

This jet kit fits many bikes. It works for Honda and Suzuki. It fits Kawasaki too.

The jets fit dirt bikes. They work for ATV use. Use them for scooters.

This set has fourteen sizes. They range from 95 to 128.

Pros Cons
  • Wide fit for many carburetor types.
  • Many sizes for easy tuning.
  • Works with many bike models.
  • Simple swap for fast setup.
  • Strong value for daily repair.
  • Safety gear needed when fitting jets.
  • Only fits specified models; check compatibility first.
  • No cleanup kit included—you’ll need extras.

Perfect For:

This Strongthium Carburetor Main Jet Kit is perfect for motorcycle enthusiasts who need a reliable and versatile upgrade. It’s ideal for riders with Honda, Kawasaki, Suzuki, or GY6 engines, offering precise tuning for better performance.

Ready to Purchase?

7. CQSPMOTO Holley Carburetor Main Jet for Carburetor 1/4-32 Gas Main Jet Assortment Kit 60 61 62 63 64 65 66 67 68 69 Holley Quick Fuel Jet, 2 pcs per size, 10 sets in total, Thread size: 1/4″-32

CQSPMOTO Holley Carburetor Main Jet for Carburetor 1/4-32 Gas Main Jet Assortment Kit 60 61 62 63 64 65 66 67 68 69 Holley Quick Fuel Jet, 2 pcs per size, 10 sets in total, Thread size: 1/4

The CQSPMOTO Holley Carburetor Main Jet Kit includes 20 jets in sizes 60 to 69. Each size comes in two pieces, making two complete sets. These jets fit 1/4-32 threaded carburetors.

They work with Holley, Quick Fuel, and other brands. Use them to tune your engine for better performance. Check your jet size chart before buying.

Made from high-quality materials, these jets ensure consistent fuel flow. Start tuning with a larger jet size and work down for safety. This kit helps you maximize horsepower and throttle response.

Pros Cons
  • Unlock max horsepower with precise air-fuel ratio tuning.
  • Fits multiple carburetors, replacing Holley, Quick Fuel, and more.
  • High-quality materials ensure consistent flow and performance.
  • Easy tuning with 10 sizes for safer engine adjustments.
  • Thin metal may bend or break fast.
  • The small marks are hard to read.
  • Some kits miss a few key sizes.

Perfect For:

This kit is for men who fix cars. It helps you tune your engine.

Ready to Purchase?

8. YGQ Carburetor Jet Kit for Mikuni Main & Pilot Slow Jet 42 Pcs N100.604 VM28/486 VM4/042 VM22/210

YGQ Carburetor Jet Kit for Mikuni Main & Pilot Slow Jet 42 Pcs N100.604 VM28/486 VM4/042 VM22/210

The YGQ Carburetor Jet Kit gives you many jet sizes in one set. It helps you tune Mikuni carbs with ease.

It fits many VM, TM, and HSR carb types. It works with main jets and pilot jets. It suits many street, ATV, and offroad uses.

You get a wide range of parts in one kit. That makes setup fast and simple. It is a smart pick for clean tuning.

Pros Cons
  • 42-piece kit offers wide range of jet sizes for precise tuning.
  • Fits multiple Mikuni carburetors, saving time and money.
  • Compatible with 2-stroke and 4-stroke engines, versatile for various vehicles.
  • Includes main, pilot, and slow jets, covering all tuning needs.
  • May require expertise for proper installation
  • Limited to Mikuni carburetor models only
  • Some jets may not fit all engine types

Perfect For:

This kit is perfect for bike and ATV owners who need a wide jet range for Mikuni carbs. It is also great for shop users who want easy tune-up parts for 2-stroke and 4-stroke rides.

Ready to Purchase?

9. SYOWADA 25 Pcs Carburetor Main Jet Kit Replacement for Mikuni VM22 VM24 VM26 Carburetor Used on 125cc 150cc 200cc 250cc Engine Motorcycle Dirt Pit Bike (25 PCS)

SYOWADA 25 Pcs Carburetor Main Jet Kit Replacement for Mikuni VM22 VM24 VM26 Carburetor Used on 125cc 150cc 200cc 250cc Engine Motorcycle Dirt Pit Bike (25 PCS)

The SYOWADA 25 Pcs Carburetor Main Jet Kit fits Mikuni VM22, VM24, VM26, and VM30 carburetors. It works with 125cc to 250cc engines. It is made for easy fit and fast use.

This kit includes 25 jets in many sizes. It can help your engine run better and give you more control.

Pros Cons
  • Great fit for many small bike engines.
  • Get many sizes in one low cost pack.
  • Easy to use for fast bike tuning.
  • Strong brass parts that last a long time.
  • Save time with the right parts on hand.
  • May not fit all carb models
  • Small parts can be easy to misplace
  • No labels on jet sizes for quick ID

Perfect For:

This SYOWADA 25 Pcs Carburetor Main Jet Kit is perfect for motorcycle enthusiasts and DIY lovers. It’s ideal for improving your bike’s performance if you have a 125cc, 150cc, 200cc, or 250cc engine.

Ready to Purchase?

10. YAMAKATO Aftermarket 33pcs Carburetor Jet Kit w/ 11pcs Slow Pilot Jets and 22pcs Main Jets for Honda PWK Keihin OKO CVK KOSO PE PWM Yamaha Mikuni Carb Upgrade and Rebuild

YAMAKATO Aftermarket 33pcs Carburetor Jet Kit w/ 11pcs Slow Pilot Jets and 22pcs Main Jets for Honda PWK Keihin OKO CVK KOSO PE PWM Yamaha Mikuni Carb Upgrade and Rebuild

The YAMAKATO Aftermarket Carburetor Jet Kit is a 33-piece set designed for carburetor upgrades and rebuilds. It includes 11 slow pilot jets and 22 main jets for precise tuning. This kit is not compatible with certain models, so check before buying.

Made from CNC-processed brass, these jets are corrosion-resistant and precisely sized. They fit most Chinese pit bikes, dirt bikes, and scooters with 125cc to 400cc motors. Also works with PWK, CVK, and Mikuni carb models.

Always verify the jet type by checking the product image before ordering. This kit is ideal for improving engine performance and fuel efficiency. Upgrade your carburetor with YAMAKATO’s reliable parts.

Pros Cons
  • Strong brass build for long use
  • Wide fit for many carb models
  • Easy upgrade for better performance
  • Precise jet sizes for smooth tuning
  • Great for rebuilds and repairs
  • Not universal: Doesn’t fit all models, check before buying.
  • Size confusion: Many jet sizes, easy to pick the wrong one.
  • Compatibility risk: Verify fit first or risk returns.

Perfect For:

This kit is perfect for riders who want a simple, reliable way to tune or rebuild their carb. It’s great for anyone upgrading pit bikes, dirt bikes, mini bikes, scooters, ATVs, or Go Karts.

Ready to Purchase?

Buying Guide

Best Carburetor Main Jets Kits Buying Guide

A good jet kit makes tuning easy. It helps your engine run smooth. It can also help with power and fuel use.

You feel the change fast. The ride can start cleaner and pull better. Small parts can make a big difference.

Factors to Consider When Buying

  • Carburetor fit:
    Check the carb type first. Make sure the kit matches your model. A good fit saves time and stress.

  • Jet size range:
    Pick a kit with many sizes. More sizes give you more control. This helps you find the best fuel mix.

  • Main jet and pilot jet mix:
    Some kits have only main jets. Some have both main and pilot jets. A mixed kit gives more tuning options.

  • Thread size:
    Jet threads must match your carb. A wrong thread will not fit. Always check the thread spec before you buy.

  • Material quality:
    Look for brass jets. Brass is strong and lasts well. It also helps keep fuel flow steady.

  • Clear size marks:
    Choose jets with clear size marks. This makes setup much faster. It also helps you avoid mistakes.

  • Engine size match:
    Match the kit to your engine size. Small and large engines need different jet ranges. The right range helps the engine run right.

  • Bike or vehicle use:
    Think about how you ride. A street bike, dirt bike, or ATV may need a different set. Use the kit made for your kind of ride.

  • Brand trust:
    Pick a brand with a good name. Better brands often give more steady quality. That can mean fewer fit problems.

  • Storage case:
    A case keeps jets neat and safe. It also makes them easy to find. This is very useful in a busy shop.

  • Ease of install:
    Some kits are easier to use than others. Simple install saves time. It also helps new users feel more sure.

  • Tuning range:
    A wide tuning range gives more room to test. This is good if your setup is not stock. It helps you fine-tune for better ride feel.

  • Replacement use:
    If you need a swap part, check the old part number. This helps you buy the right match. It can stop waste and return trouble.

  • Build accuracy:
    Good jets should be made with care. Exact size helps fuel flow stay even. That can improve how the engine runs.

  • Value for money:
    More jets in one kit can give better value. But only buy what you can use. The best kit is the one that fits your real need.