What are the best horsepower boosters?
We offer top-rated horsepower boosters backed by real user experiences, such as race car drivers feeling instant power boosts and karts gaining speed on tracks to outpace competitors.
Many race car drivers love adding hot oil additives to their engines, as they feel a quick power boost right after the first use. One user shared how his kart picked up speed on the track, helping him edge out competitors.
Our guide picks the best horsepower boosters based on real tests and user feedback from races and pools. You can trust us to spot top products that really work.
Grab your spot on the winner’s stand. Dive deeper into our picks. Find your perfect booster now.
List of Top 10 Horsepower Boosters
| Image | Title | Best For | Price |
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PowerPlus Hot Oil Additive Kart Racing/Midget Racing – Horsepower Booster – 4oz (3 PACK) |
This PowerPlus Hot Oil Additive is perfect for kart racers and midget racers who want to boost their engine’s horsepower and win more races. The 3-pack gives you plenty of supply for multiple sessions, making it a great fit for serious drivers chasing that extra edge on the track. |
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Hayward SPX2707Z1M 1-Horsepower Threaded Shaft Maxrate Motor Replacement for Select Hayward Max Flo Ii Booster Pump |
This motor is perfect for pool owners who need a replacement part for their Hayward Max Flo II pump. |
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Afras Industries Impeller, Booster Pump, 0.75 Horsepower |
This booster pump impeller is perfect for homeowners who need to boost water pressure in their wells or pipes. It’s also ideal for farmers and small businesses looking for a reliable way to move water more easily. |
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PowerPlus Hot Oil Additive Kart Racing/Midget Racing – Horsepower Booster – 4oz (6 PACK) |
PowerPlus Hot Oil Additive is perfect for kart racers and midget racers who want more horsepower. This 6-pack lets you use it on many cars. |
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Octane Boost |
Octane Boost is perfect for car fans who want to zip through town with more power and less gas waste. Grab this auto part to give your ride that extra kick it needs. |
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PowerPlus Hot Oil Additive Kart Racing/Midget Racing – Horsepower Booster – 4oz (2 PACK) |
This horsepower booster is perfect for kart racers and midget racers who want to enhance engine power. It comes in a two-pack for easy use and better results on the track. |
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PB4-60 Booster Pump 3/4 hp,Compatible With Polaris Pb4-60 Booster Pump,Compatible With Polaris 280,360,380 For Pressure Side Pool Cleaners,For With PB460,180-480 Pressure Pool Cleaners,115V/230V |
This ${product_name} is perfect for pool owners who use pressure-side automatic cleaners from Polaris like the 180, 280, 380, 480, or 3900 Sport models. It also fits Hayward, Pentair, and Arneson pool cleaners that need a booster pump for better cleaning power. |
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Stanadyne Performance Formula Warm Weather Blend | Pack of 6-8oz Bottles 43568 |
This fuel additive is perfect for truck drivers and farmers who drive in hot climates. It keeps diesel engines running smooth and strong during warm weather. |
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PowerPlus Hot Oil Additive Kart Racing/Midget Racing – Horsepower Booster – 4oz (4 PACK) |
This product is for racers who want more power. It’s perfect for kart racers and midget racers wanting a boost in performance. |
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AKWH PB4-60 Swimming Pool Booster Pump 3/4 HP Replacement for Polaris Pressure Side Pool Cleaners 115V/230V |
This booster pump is perfect for pool owners who use Polaris pressure-side cleaners like the 280, 380, or Kreepy Krauly models and need a reliable replacement to keep their pools clean with less energy use. With easy setup and a strong motor, it suits anyone wanting top cleaning power without high costs. |
Detailed Reviews
Ready to unlock more power? Discover the best horsepower boosters here. Our expert guide simplifies your search today. Find the perfect product for your needs now. Boost your vehicle’s performance with ease.
1. PowerPlus Hot Oil Additive Kart Racing/Midget Racing – Horsepower Booster – 4oz (3 PACK)

PowerPlus is a hot oil additive for kart racing and midget racing. This 3-pack gives you 3 bottles of the 4oz horsepower booster.
Add it to your engine oil. It boosts speed right away. Results show up fast.
Grab this pack to win more races. Your kart will zoom like never before.
| Pros | Cons |
|---|---|
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Perfect For:
This PowerPlus Hot Oil Additive is perfect for kart racers and midget racers who want to boost their engine’s horsepower and win more races.
The 3-pack gives you plenty of supply for multiple sessions, making it a great fit for serious drivers chasing that extra edge on the track.
Ready to Purchase?
2. Hayward SPX2707Z1M 1-Horsepower Threaded Shaft Maxrate Motor Replacement for Select Hayward Max Flo Ii Booster Pump

Upgrade your Hayward Max Flo II booster pump with the SPX2707Z1M Maxrate motor. This 1-horsepower replacement fits select models like SP2705X7(EE) and SP2715X20/2.
It has a threaded shaft for easy install. The motor runs on single phase, 60 cycle, 115/208-230V power. It weighs just 23-1/2 pounds for simple handling.
| Pros | Cons |
|---|---|
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Perfect For:
This motor is perfect for pool owners who need a replacement part for their Hayward Max Flo II pump.
It fits specific models like SP2705X7(EE), SP2707X10/2, SP2710X15/2, and SP2715X20/2.
Ready to Purchase?
3. Afras Industries Impeller, Booster Pump, 0.75 Horsepower

Need a boost? Check out the Afras Industries Impeller!
This booster pump is powerful and efficient. It’s made by Afras Industries, so you know it’s great. The 0.75 horsepower makes it just right for you.
This impeller gets the job done fast. It’s easy to install and use right away. Get yours now for a smooth experience!
| Pros | Cons |
|---|---|
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Perfect For:
This booster pump impeller is perfect for homeowners who need to boost water pressure in their wells or pipes. It’s also ideal for farmers and small businesses looking for a reliable way to move water more easily.
Ready to Purchase?
4. PowerPlus Hot Oil Additive Kart Racing/Midget Racing – Horsepower Booster – 4oz (6 PACK)

Want more power? Need a boost on the track? This PowerPlus Hot Oil Additive is your simple solution. It helps your engine run great. It also gives you extra horsepower right away.
This additive is for racing karts and midget cars. It’s easy to use: just pour it in. Each bottle has 4oz of the perfect mix. This 6 PACK will keep you racing strong during all your races.
Get ready to win. Order your pack today!
| Pros | Cons |
|---|---|
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Perfect For:
PowerPlus Hot Oil Additive is perfect for kart racers and midget racers who want more horsepower. This 6-pack lets you use it on many cars.
Ready to Purchase?
5. Octane Boost

Get ready for a performance upgrade! This Octane Boost is easy to use. It comes in a simple package.
It weighs just over a pound. You only get one in this deal.
This is a must-have auto part. It is made for your vehicle. Grab yours today!
| Pros | Cons |
|---|---|
|
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Perfect For:
Octane Boost is perfect for car fans who want to zip through town with more power and less gas waste. Grab this auto part to give your ride that extra kick it needs.
Ready to Purchase?
6. PowerPlus Hot Oil Additive Kart Racing/Midget Racing – Horsepower Booster – 4oz (2 PACK)

This PowerPlus Hot Oil Additive is for kart racing and midget racing. It boosts horsepower in engines.
Add this 4oz additive to your oil. You get two packs for more use. Order now to win races.
| Pros | Cons |
|---|---|
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Perfect For:
This horsepower booster is perfect for kart racers and midget racers who want to enhance engine power. It comes in a two-pack for easy use and better results on the track.
Ready to Purchase?
7. PB4-60 Booster Pump 3/4 hp,Compatible With Polaris Pb4-60 Booster Pump,Compatible With Polaris 280,360,380 For Pressure Side Pool Cleaners,For With PB460,180-480 Pressure Pool Cleaners,115V/230V

The PB4-60 Booster Pump is a 3/4 horsepower pump for pools. It works with 230V or 115V power. It comes in a black color and measures 17×9.5×14.5 inches.
This pump fits Polaris cleaners like the 180, 280, 380, 480, and 3900 Sport. It also works with Arneson, Hayward, and Pentair models.
The pump uses a heavy-duty design for strong flow. It has an all-copper motor for quiet work. Get 24-hour support if you need help.
| Pros | Cons |
|---|---|
|
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Perfect For:
This ${product_name} is perfect for pool owners who use pressure-side automatic cleaners from Polaris like the 180, 280, 380, 480, or 3900 Sport models. It also fits Hayward, Pentair, and Arneson pool cleaners that need a booster pump for better cleaning power.
Ready to Purchase?
8. Stanadyne Performance Formula Warm Weather Blend | Pack of 6-8oz Bottles 43568

Keep your engine running smoothly with Stanadyne Performance Formula Warm Weather Blend. This product comes in a pack of 6 bottles, each containing 8 ounces of the special formula.
It is designed for automotive use. The formula helps with performance. This product is made by STANADYNE.
This product is identified by the part number 43568. It is a great choice to maintain your vehicle’s performance.
| Pros | Cons |
|---|---|
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Perfect For:
This fuel additive is perfect for truck drivers and farmers who drive in hot climates. It keeps diesel engines running smooth and strong during warm weather.
Ready to Purchase?
9. PowerPlus Hot Oil Additive Kart Racing/Midget Racing – Horsepower Booster – 4oz (4 PACK)

Want more power when you race? Get the PowerPlus Hot Oil Additive!
This additive makes your kart or midget car run better. You’ll get more horsepower. Each purchase gets you 4 bottles. Win more races today!
| Pros | Cons |
|---|---|
|
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Perfect For:
This product is for racers who want more power. It’s perfect for kart racers and midget racers wanting a boost in performance.
Ready to Purchase?
10. AKWH PB4-60 Swimming Pool Booster Pump 3/4 HP Replacement for Polaris Pressure Side Pool Cleaners 115V/230V

This AKWH PB4-60 Booster Pump powers up your pool cleaning with a strong 3/4 HP motor. It works great on the low speed of pumps for energy savings and smooth flow. It fits perfectly as a replacement for Polaris cleaners like the 280, 380, and others. You get clear wiring instructions to set it up just right at 115V or 230V.
The pump has a heavy-duty base with a big seal O-ring for tight performance. It pulls 6.4 amps on low speed or 12.8 amps on high for your needs. Quick connectors and soft hose make installation easy without hassle. This boosts your cleaner’s power for a spotless pool every time.
Buy now to keep your pool clean. Save energy with low-speed use. Enjoy easy setup today.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This booster pump is perfect for pool owners who use Polaris pressure-side cleaners like the 280, 380, or Kreepy Krauly models and need a reliable replacement to keep their pools clean with less energy use. With easy setup and a strong motor, it suits anyone wanting top cleaning power without high costs.
Ready to Purchase?
Buying Guide
Horsepower boosters can give your engine a quick lift. Use them in racing to gain an edge.
Drivers share how hot oil additives make karts faster on tracks. One user beat rivals by speeding up after adding it.
Here are key factors to consider when buying a horsepower booster:
- Type: Choose between oil additives for engines or pump upgrades for pools. Oil ones boost kart speed right away. Pump ones help pool cleaners work harder.
- Use: Pick based on your need, like racing or cleaning pools. Additives go into engine oil for quick power. Pumps replace old motors for better flow.
- Dose: Get packs with multiple bottles for long-term use. A four-pack lasts several races. Pumps come as singles for one-time swaps.
- Power Boost: Look for instant speed gains in additives. Pumps offer horsepower ratings like three-quarters for strong push. Expect fast results from both types.
- Fit: Ensure it matches your equipment, such as kart engines or specific pumps. Additives work with standard oil. Pumps fit brands like Hayward or Polaris.
- Ease: Buy products that install fast and easy. Pour additives in oil with no tools. Pumps come with wires and instructions for simple setup.
- Reviews: Check user feedback for real wins in races. Many praise speed boosts and smooth runs. Pool users note quiet, strong cleaning.