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How can I tell whether I have a Pro5R/ProGuard7 oiled or ProDryS oil-free filter?
If the filter is blue (Pro5R) or gold (ProGuard7), then it is oiled. If the filter media is grayish white (Pro Dry S), then it not oiled. With conical filters, look at the top. If it has the "aFe" or "Pro Guard 7" logo printed on the end, then it is an oiled type filter. If the filter has Pro Dry – S printed, it is an oil-free filter.  Their may also be a part number on the filter. look for a small circle plug on the urethane part of the filter.  There will be a part number located on it.  Any numbers with 10-, 30-, 24- are Pro 5R, 11-, 31, 21- are Pro Dry S and any filter number beginning in 7 will be a Pro Guard 7 air filter.  If you have further questions, please call us directly at 951-493-7155 and we can help you figure out the filter.

How do I clean my aFe air filter?
Before you start to clean the filter, determine whether you have an oiled or oil-free filter. See #1. Also have the appropriate cleaning kit for your filter: #90-50500 for gold, #90-50501 for blue and #90-59999 for oil-free. Follow the steps below 1) Use a soft bristle brush like a paint brush to remove large chunks of debris and dirt from between the pleats. GENTLY TAPPING the filter on the ground to remove any loose dirt being careful not to bend any of the pleats. 2) Spray the cleaning solution that comes in our Restore Kit, on the dirty side of the filter. Let the cleaning solution soak in for about 10 minutes. 3) Rinse the filter from the clean side of the filter to the dirty side. Repeat spraying and rinsing until the water is clear. Since media will be stained, it will not be completely white and may still appear dirty. 4) DO NOT USE A HIGH PRESSURE WATER NOZZLE when rinsing the filter. 5) Let the filter air-dry. DO NOT USE COMPRESSED AIR TO DRY THE FILTER! It may take a couple of hours for a Pro DryS to 12 to 24 hours for a Pro5R depending on humidity and temperature. 6) If you have an oil-free Pro Dry-S filter, the cleaning process is completed and the rest of these instructions can be disregarded. 7) After the filter is dry, apply oil across 6 pleats in a zig-zag pattern, leaving about a 1/2" inch of media un-colored from the urethane. DO NOT DROWN THE FILTER WITH OIL! The oil will wick out a great deal. 8) Leave the oiled filter for 8 to 12 hours to allow the oil to fully wick. Finally, spot apply oil to areas that still do not have "color" to it.

When or how often should I clean my aFe air filter?

We recommend that you follow the manufactures recommended service schedule. You can find that in your vehicle owner’s manual. Once you reach that mileage mark, take a look at the filter. If you can still see the aluminum mesh on the filter then it is still ok and does not need to be cleaned. Check the filter every other oil change. When it gets to the point where you cannot see the aluminum mesh on the filter anymore, then it is time to clean the filter. You should clean the filter around the 25K - 30K mile mark under normal conditions. In extreme dusty or dirty environments, you should check more frequently. Over cleaning the filter will shorten the life of the filter and reduce its filtration efficiency. Accumulating some dirt actually helps the filtration.

Important Reminder - If you can still see the aluminum mesh on the outside of the filter, it is still fine.  Clean the filter when you can not see the aluminum mesh on the outside of the filter.

What is the difference between the three media – Pro 5R, Pro DryS and ProGuard7 - that aFe offers?

aFe offers three different types of filter media for most of our filters and intake systems because everyone has different driving conditions and different driving needs. There is the Pro5R, ProGuard7 and ProDryS. There are detailed explanations for these media in other sections of this website. Without going into details of each media, the basically differences are: 1) Pro5R is 5-layers of progressively finer mesh oiled cotton gauze which offers maximum airflow. This media is ideal for those who drive mostly on paved street and highway who want maximum horsepower. 2) ProGuard7 is 5-layers of progressively finer oiled cotton gauze used in the Pro5R media backed by another 2-layers of finer porosity synthetic non-woven media which offers maximum protection. This media is ideal for those who do a lot of unpaved, off-road driving in severe dusty and dirty environments where protection is more important than maximum horsepower. This media is most popular with compression-ignition diesel truck owners. 3) ProDryS is a 3-layer progressively finer porosity synthetic non-woven media, which is oil-free and offers maximum convenience since it does not require re-oiling. This media is ideal for those who don’t want the hassle of re-oiling a filter.

For more complete information, please visit the technology section of this website.

How can I tell what intake system I have since I bought my vehicle used and the kit came with it?
aFe offers a variety of intake systems for various vehicles. The quickest way to find out what intake system you have is to do a product search on our website for your vehicle. Input your fuel type, make, model and year on our product search and you should see your intake system in the result. If you can’t tell which media you have in your vehicle, see Question 1 to determine which media you have. If you still cannot determine the intake system you have, call our Power Professionals at (951)493-7155 and we will help you figure it out.

What is the difference between aFe filters and other manufacturer’s filters?
We invite consumers to compare our products with others. Here are several things to look for: 1) Media construction: constant mesh or progressive mesh. aFe is the only company that uses a progressively finer mesh media. 2) Pleat design: Tight or open? Pinched or rounded? aFe uses an open, rounded pleat design that allows better airflow through the tops and bottoms of each pleat. 3) Pleat height: Deep or shallow? aFe pleats are 30% deeper pleats than competitors for longer service interval and greater dust holding capacity. 4) Filter seal: Soft or hard? Flat or progressive? Additional sealing gasket or grease needed or not? aFe uses a pliable, progressive bump seal that requires no foam gasket or filter grease.

What are the differences between an aFe intake system and other manufacturer’s systems?
Here are several things to look for the fit and finish of aFe intake systems: 1) Do you have to assemble the housing? Our housings are usually one piece and come pre-assembled. 2) How many parts are included with the system? aFe minimizes components as much as possible for easier installation. 3) Is any cutting, drilling or modification of the vehicle required? aFe systems use stock mounting points and require no modification to the vehicle. 4) What are the performance numbers? Through the use of molded plastic tubes and 3-angle adaptors that direct airflow more effectively, aFe consistently delivers excellent horsepower and torque numbers. Check out for your expected performance results.

Can I use someone else’s oil on an aFe filter?
We recommend that you use an aFe restore kit oil.

What is the warranty on my aFe part?

aFe OE replacement filters are warranted against manufacturer defects for as long as you own the vehicle and it is properly maintained using our filter cleaning kit. Our universal clamp on air filters and air intake kits are warranted against manufacturer defects for 2 years. Our racing filters are warranted against manufacturer defects for 1 year. All warranty is contingent on proper installation and proper maintenance using our restore kit. All other aFe products such as our exhaust systems, intake manifolds and intercoolers have a 2-year warranty.

To warranty a product you must return it through your original place of purchase and have the original sales receipt.  If you have any further questions, please call the aFe Power Professionals at 951-493-7155 and they can help you with any warranty issues.

Will putting an aFe filter or air intake system in my vehicle void my factory warranty?
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)). For best results, consider working with performance-oriented dealerships with a proven history of working with customers. If your vehicle manufacturer fails to honor emission/warranty claims, contact EPA at (202) 260-2080 or If federal warranty protection is denied, contact the FTC at (202) 326-3128 or Also check out this link from SEMA for additional information on your rights; For additional information on the Magnuson-Moss Act, go to or

Is my aFe air filter "street" or emission legal?
Since replacing the stock OE air filter with a high-flow performance air filter such as aFe does not change or affect the stock intake tract and emission controls, a performance air filter is considered "street" or CARB emission legal.

Is my aFe intake system "street" or emission legal?

Air intake systems do alter the stock intake tract and therefore, requires an exemption from CARB emission requirements. As a California based company aFe submits our intake systems to CARB for exemption so that the intake system can be used legally on the street. However, obtaining CARB exemption takes time and not all aFe intake systems are exempt. Many aFe intakes have CARB EO numbers making them 50-state legal.  All products that have received a CARB EO number are clearly marked on the product landing page.

When an aFe intake system is not exempt, they would be legal only in racing situations and not for street use in the 13 states that have adopted California emission standards. Contact our customer service dept @ 877-512-8111 to find out if a particular intake system is CARB exempt or not or check your local or state regulations.

What kind of MPG improvement should I get with my aFe air filter?
Due to the 30-40cfm of additional air entering your engine, you may see a marginal gain in mpg vs. the factory filter. aFe does not and will not claim to improve your fuel mileage because everybody's vehicle, driving condition & habits are different. We do however claim to increase the torque and horsepower of your engine, make the engine run more fuel efficient and improve the quality and amount of air that goes into your engine. This will allow the engine to use less fuel driving under the same conditions that you are driving in now.

What kind of MPG improvement should I get with my aFe intake system?
We have had countless people call in to say that their fuel mileage has increased with diesels and gas engines alike from 1-5 mpg. aFe does not and will not claim to improve your fuel mileage because everybody's vehicle, driving condition & habits are different. We do however claim to increase the torque and horsepower of your engine, make the engine run more fuel efficient and improve the quality and amount of air that goes into your engine. This will allow the engine to use less fuel driving under the same conditions that you are driving in now.

Should I have to cut my aFe Intake if I am having trouble with my installation?

Absolutely Not!  aFe intakes are designed to install with no cutting or notching.  To make maximum power and performance, aFe intakes use the largest filters and boxes available. If you run into some installation problems, please call our Power Professionals at 951-493-7155.  They will be able to help you with your technical issue without cutting or notching the intake.

Are DPF-Delete exhaust systems legal?

aFe DPF-Delete race exhaust systems are for  "Race Only" and used solely for competition. Its use is limited to closed-course racing that is formally sanctioned by a recognized racing organization.  Any other use, including recreational off-road use, could be in violation of local, state and federal laws. This system also requires an aftermarket electronic module to work properly with the vehicle. 

Visit for the release of liability form.

Does Scorcher tuners support custom tuning?
Scorcher tuners are engineered to have multiple tunes per unit and includes tunes that are specifically designed around aFe performance products.  Custom tuning is not offered at this time.

What aftermarket accessories will my Scorcher programmer work with?

Scorcher programmers are engineered to work with following parts right out of the box: throttle body spacers, shorty headers, cat-back or turbo back exhaust systems, air filters, intake/exhaust manifolds and cold air intake systems.  Compatibility may vary by make and model.  If you have any questions, please contact the Power Professionals at 951-493-7155.

What are the differences in the download packages/update options?

A 'Standard Update' gives you the latest Scorcher operating software and tunes for your vehicle. Standard updates download automatically when using the Easy Update software.  Once this is complete you will have the option to choose additional downloads and features such as Data Acquisition and advanced tunes that only aFe Power supports. Read each package to know what is right for you.

How do I change my vehicle's calibration?


Refer to the 'Program Your Vehicle' Section in the getting started guide that is included with each Scorcher programmer for detailed instructions. A pdf is also available for download on any Scorcher programmer website landing page. Simply go to www. and put your Scorcher part number in the keyword section.

Does Scorcher work on Cab and Chassis trucks?

Scorcher supports 'complete'  truck models such as F-150, Silverado, Ram 1500.  We do not support cutaway cab and chassis pickups built from cab and chassis frames. These vehicles are considered 'incomplete'.


What if I have a later model Turbo Diesel with a Diesel Particulate Filter (DPF)? Will the Scorcher work?
Your Scorcher programmer is 100% compatible with DPF-equipped vehicles. Your diesel vehicle is required to be equipped with a DPF to promote cleaner emissions. The filter reduces the amount of harmful exhaust emitted from the tailpipe. As soot builds up in the DPF, it will begin restricting the filter. The soot that gathers is automatically purged in one of two ways; passive regeneration or active regeneration. Both occure automatically and require no action on the driver's part.  Scorcher products do not currently have the capability to turn off the DPF function (DPF-Delete).

How do I update my programmer?
Your Scorcher programmer is designed to be easy to update. Simply follow the Easy Update section of the Getting Started guide. All you need is an internet connection, aFe Power username and password and a few minutes. Go to to download the Easy Update software and set up your username and password.

Is there a part number on an aFe air filter

Yes there is. To locate the part number you should look at the base of the air filter. You will see a small circle about 3/4" in diameter. In this circle you will find a part number.  It will be something like 24-91029.  This is the part number for that particular air filter.  On OE replacment filters the circle is usuall located on the frame at one of the wider points of the filter.

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Cold Air Intakes and Air Filters. More Air Flow = More Power!