When I swapped out my old air filter for the Spearhead Max Thrust, I noticed it fit well and felt solid.
The filter gives your engine cleaner air and helps with gas mileage, which I appreciated on longer drives.
I saw that the filter holds more dirt than typical ones, so it should last a while.
Installing it was simple on my car.
However, the fit might be tricky for some models with certain transmissions.
It feels like a quality replacement that matches the original without costing as much.
If you want an easy-to-install air filter that can improve your car’s airflow and help with fuel economy, the Spearhead Max Thrust is a solid option.
It’s affordable and fits well for many models.
Click here to purchase the Spearhead Max Thrust Air Filter today!
Overview of the Spearhead MPG Defense Max Thrust Engine Air Filter
After I installed the Max Thrust air filter, I noticed it fit well, just like the original part.
The build quality feels solid, and the filter material covers the edges completely, which helps keep dirt out.
I swapped it out myself in under five minutes.
The air flow feels steady, and my engine runs smoothly without hesitation.
The filter claims to trap twice the dirt compared to standard filters.
Based on the denser pleats I saw, this seems accurate.
It only fits certain automatic transmission models, so check compatibility before buying.
Key Features
When I swapped in this air filter, I noticed a few things right away.
It traps dirt well while keeping air flowing smoothly, which helps your engine run better.
Hex-D Pleat Design for Maximum Dirt Trapping
The Hex-D pleat design holds onto dirt better than many stock filters I’ve used.
It traps about twice the dirt of standard filters without clogging quickly.
This keeps the filter effective longer.
The multiple layers catch fine debris but still let air pass easily.
Enhanced Airflow Up to 15K Miles
After several thousand miles, I saw the airflow stayed strong up to about 15,000 miles.
This helped my engine breathe better and not work as hard.
Clean, steady airflow improves power and gas mileage compared to older or clogged filters.
DIY Easy Installation
Installing this filter was simple.
It fits as a direct replacement for many vehicles, so I didn’t need extra tools or parts.
The fit felt snug and secure, which prevents air leaks.
If you’re comfortable with basic car maintenance, you can do this yourself and save on mechanic costs.
Cost-Effective Performance Upgrade
This filter is a smart upgrade without a high price tag.
It feels sturdier than the original filter I replaced and seems to last longer.
Since it balances dirt holding and airflow well, you need fewer replacements and get steady engine performance.
Pros and Cons
After using this filter for a few weeks, I noticed some clear upsides and a couple of drawbacks.
Pros
The fit was spot on for my car, matching the original air filter.
Installation took less than five minutes.
The build quality felt solid, and the filter material stretched to the edges, making it more durable.
The air flow seemed better, and my car felt more responsive when accelerating.
The price is more affordable than OEM filters.
Cons
One downside was the fitment on some models like the BRZ, where it didn’t work as expected.
The filter lacks a rubber seal around the edges, which might affect how well it seals in some engines.
The absence of a gasket could cause slight air leaks in certain setups.
Some users might find the quality less consistent, especially if they need perfect OEM-level standards or have a vehicle not listed in the fitment guide.
You also have to be careful about the return window, as returns might get complicated if you wait too long after installing it.
| Pros | Cons |
|---|---|
| Easy and quick install | Possible fit issues on some models |
| Solid, durable design | No rubber seal/gasket around edge |
| Better airflow than stock | Return policy can be strict after install |
| Cheaper than OEM | Quality may vary by production batch |
Customer Reviews
Many users appreciate how easy it is to install and how well it fits most vehicles.
The material feels durable, and the design matches OEM standards closely.
Users often mention that it helps with airflow and feels like an upgrade over their old filters.
Some users have had fitment issues with certain car models, which caused frustration and difficulty getting refunds.
A few people also note the lack of a rubber seal on the edge, which might affect sealing in some cases.
When to Replace Your Engine Air Filter
The best time to swap out the air filter is around every 12,000 to 15,000 miles.
If your car starts to feel sluggish or your gas mileage drops, your filter might be clogged.
Dusty or dirty driving conditions can make the filter get dirty faster, so check it more often then.
The filter I used held up well and kept air flowing even when dirty.
After about 15,000 miles, it’s time for a new one to keep your engine running smoothly.
Ignoring this can reduce power and lower fuel efficiency, so timely replacement saves headaches and money.
Conclusion
I used the Spearhead MPG filter for a while. It fits well and installs quickly, much like an OEM part.
The filter feels sturdy. It helps the engine breathe better, which gave my car a bit more pep.
The all-material design might reduce waste when it’s time to change it. However, the fit isn’t perfect for every vehicle.
Check compatibility before buying. Some users reported issues with the seal or fit on certain models, which could affect performance.
If your car matches the fit, this filter offers good quality at a lower price. It can be a practical replacement option.


