aFe manufactures its air intake systems to enhance airflow and increase overall engine performance. These systems are designed to gain horsepower and torque for your vehicle

AFE Air Filters

aFe air filters offer a great balance of protection, performance, and convenience to boost the performance of your vehicle.

AFE Exhaust Systems

aFe offers a variety of cat-back, filter-back, and turbo-back exhaust systems, designed to increase air flow and gain horsepower and torque, to get the best performance for your vehicle.

AFE Exhaust Tips

Essential accessories for your aFe exhaust system.

AFE

Accessories and Parts

Air Filter

Air Intakes

ATV-UTV Air Filter

Differential Cover

Exhaust Systems

Exhaust Tips

Performance Chip

Power Pulley

Throttle Body Spacer

Transmission Coolers

UTV Air Intakes

Vehicle Fluid Filter

AFE Reviews and Installation Videos

Review of Stage 2 Air Intake from AFE

Manufacturer Review of AFE Air Filters

Information about the vendor AFE

Installation of a Pro Dry S Performance Air Filter from AFE

Installation of an AFE Air Intake System on a 2005 GMC Sierra

Installation of an Air Intake System on a 2005 Infiniti G35

Installation of a AFE Direct Fit Cold Air Intake System on a 2002 Ford F-350 Super Duty

Installation of an AFE Air Filter on a 2007 Toyota 4Runner

Installation of a aFe Direct-Fit Cold Air Intake System with Pro Dry S Filter

Review of Air Intakes from AFE

Installation of an AFE Air Filter on a 2008 Mercury Mariner

Expert Answers about AFE

Will aFe Silver Bullet Throttle Body Spacer Part # AFE46-38008 Affect 2012 Toyota 4Runner Warranty
Use of an engine performance enhancement product such as the AFE Throttle Body Spacer, part # AFE46-38008, will not in and of itself immediately void a vehicle manufacturer warranty. Consumers of aftermarket products are protected by the Federal Magnusson-Moss Warranty Act. The Act states that if something breaks on your vehicle and you take it in for warranty repair, the dealer must honor your warranty unless whatever modifications you have added to your vehicle actually caused the problem
view full answer...

Will the aFe Mach Force XP Cat-Back # AFE49-46001 Increase Gas Mileage
When you reduce back pressure by going to a free flowing exhaust on a vehicle the gas mileage will increase because the efficiency of the engine increases also. Most likely you would see a slight increase in gas mileage, but honestly that will depend a lot on your driving habits. Light acceleration and light braking will get you better gas mileage than hard acceleration and late, hard braking when it is time to slow down.
view full answer...

Replacement Filter for the AFE Direct Fit Cold Air Intake System # AFE75-80392-0V
The correct replacement air filter for the AFE Intake System, # AFE75-80392-0V, is the Universal Pro Guard 7 Air Filter - Oiled, # AFE72-90032.
view full answer...

Installation of a Cold Air Intake System on a 2012 Ram 3500 6.7L Diesel
After doing some research on your 2012 Ram 3500 6.7L and speaking with my contact at aFe, I could not find any known issues with the OEM sensors and an aftermarket intake system. The OEM sensors will be installed in the new intake system (see photo) and my contact at aFe assured me that you should not have any issues with your air sensors when you install the Cold Air Intake, # AFE75-12032, assuming there is nothing wrong with your sensors now.
view full answer...

aFe Silver Bullet Throttle Body Spacer for 2009 Ford F150 Lariat
Because the aFe Silver Bullet Direct-Fit Throttle Body Spacer, part # AFE46-33002 is designed to mount between the throttle body and intake manifold, it will be compatible with your KandN air filter system. Keep in mind that the spacer is 1 inch thick, so if your aftermarket filter system has proper clearance to be moved 1 inch further away from the intake manifold, the spacer would work well for you. In most cases, the connection between the throttle body and the intake manifold is right
view full answer...

Comparing the Cold Air Intake Options for a 2012 Toyota Tundra
The main advantage that the open box systems, # AFE51-11172 and # AFE54-11172, have over the enclosed box system, # AFE54-81172 and # AFE51-81172, for your 2012 Toyota Tundra is that open systems offer the maximum amount of airflow. The enclosed box systems will still have plenty of air flow, just not as much as an open box system. Another main difference between the open and enclosed systems is the noise level. The open system will provide a deep sound, kind of like a growl, that will be sl
view full answer...

How Does aFe Direct-Fit Pro 5R Performance Oiled Air Filter # AFE30-10200 Compare to K and N Filter
We do not carry the K and N brand of filters, but aFe does list some things to look for when comparing different brands of filters. Here are several of the 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
view full answer...

Will aFe Silver Bullet Throttle Body Spacer # AFE46-38005 Fit on 2011 Toyota Tundra 4.6
After consulting with aFe, I have found the aFe Silver Bullet Throttle Body Spacer # AFE46-38005 is a compatible fit for your 4.6 liter 2011 Toyota Tundra. This item increases engine efficiency and can improve your vehicles horsepower by as much as 10 hp and increase your torque by as much as 14 ft-lbs. It is legal in all 50 states and compliant with the California Air Resources Board and comes with a limited lifetime warranty.
view full answer...

Availability of Programmer for 1999 Ford F350 with 6.8L V-10 Motor That Would Improve Fuel Economy
The aFe Scorcher Performance Programmer you mention, part # AFE77-43001 is compatible with the Ford Diesel engines only, not with Gas engines. The Superchips Flashpaq, part # SU1865 is compatible with the 6.8L gas engine, and offers a Mileage XS Save level, but according to Superchips, the 6.8 L engine was not designed with fuel economy in mind, and that only a 1 to 1-1/2 mpg increase in fuel economy would be your best case scenario. The real-world fuel economy offered by the Edge EvoHT #
view full answer...

Pre-Filter Recommendation for an AFE Pro Dry S Air Filter
We do carry pre-filters for the most of the Pro Dry S filters. If you have the Pro Dry S filter, # AFE21-90020, for the Cold Air Intake, # AFE54-10502, then you will want the pre-filter, # AFE28-10043. I confirmed that this pre-filter will work with the Pro Dry S filter # AFE21-90020 with my contact at AFE. If you have a different air filter, then just let me know the part number of your oil filter or of the cold air intake system that you have and I can recommend the correct pre-filter for
view full answer...

Will aFe Cold Air Intake System, Part # AFE51-11302, Pass California DMV Inspection
California is the one state in the nation in which this product will not satisfy emission control standards (CARB). If you still have the OEM air cleaner, your best bet is to remove the aFe Intake System, re-install the OEM air cleaning system and have your required DMV visual inspection performed. I wish I could recommend you then simply re-install the cold air intake after the visual inspection, but since that would be illegal I can not safely recommend you do that.
view full answer...

Throttle Body Spacer for a 2004 Lexus GX470
If your 2004 Lexus GX470 has the 4.7 liter motor then you can use throttle body spacer # AFE46-38004 that you have referenced. I have included a link to the installation instructions for you to view.
view full answer...

Can you Adjust the Shift Points with a aFe Scorcher Programmer
You will need to enter the Advanced Options of the aFe Scorcher Performance Programmer # AFE77-43002 and then you will be able to adjust the shift points. When you plug in the programmer it should prompt you and ask if you would like to do a Quick Tune or an Advanced Tune. If you select Advanced Tune you will be able to adjust the shift points.
view full answer...

Fit of aFe Direct-Fit Pro Dry Performance Air Filter # AFE31-10024 on 1978 VW Beetle Convertible
The aFe Direct-Fit Pro Dry S Performance Air Filter you mentioned, part # AFE31-10024 is indeed a fit for your 1978 VW Beetle Convertible. I would recommend going with the dry filter, which provides a slightly higher level of filtration and is more suitable for dusty conditions than the oiled filter.
view full answer...

How Does the MAF Sensor Install into the AFE Cold Air Kit for the 2011 Ford Expedition
If you have not already, you are going to need to remove the 2 T-20 Torx screws that hold the MAF sensor in your factory air box and then reinstall it into the new tube of your AFE Cold Air Intake # AFE51-11622-PV. Check out the picture and installation instructions I attached that show you how this is done.
view full answer...

What Air Intakes are Compatible with a Throttle Body Spacer for a 2004 Dodge Ram
The tech tip for the throttle body spacer, # AFE46-32002, is indicating that it only fits with aFe intake part # AFE54-10382, # AFE51-10382, # AFE54-10712 and # AFE51-10712. It does not fit with the factory or any other intake system. You would need to have one of the air intakes listed above installed for the throttle body spacer to be compatible.
view full answer...

Is a Programmer Needed to Use the AFE Cold Air Intake System on a 2009 Ford F-250
A programmer is not necessary to use the AFE Direct Fit Cold Air Intake System, # AFE75-11262. Once this intake system is installed, you will not need to add any other components unless you want to improve your engine performance beyond the capabilities of the intake system. This intake system is designed for 6.4 liter diesel trucks only. I have attached the installation instructions for you to view. If you wanted to add a monitor to view your engine performance or a programmer to tune your
view full answer...

Engine Showing Error Code After Installing Cold Air Intake
According to my research, the most common cause of having that code would be a dirty or improperly installed MAF sensor. Make sure the MAF sensor is fully inserted into the intake tube. Since your system uses an oil-based filter, there might have been too much oil on the filter, which in turn contaminated the sensor. You can pull the sensor from the intake tube, and use an aerosol based electrical contact cleaner on the sensor. A vacuum leak can cause the error code, as well. Make sure that
view full answer...

Will a Cold Air Intake System and an Exhaust System Improve Fuel Economy on a 2001 Dodge Dakota 4.7L
A cold air intake like the aFe Direct Fit Cold Air Intake System, # AFE54-10372, is a benefit to the engine because cold air is more dense and therefore is more readily combustible. It will also optimize airflow allowing the engine to breathe easier. A performance exhaust like the MagnaFlow Exhaust System, # MF15611, for club cab models with 63 inch bed or # MF15739 for quad cab models with a 63 inch bed, will also optimize airflow by reducing the back pressure. Both products will allow
view full answer...

Does aFe Cold Air Intake System # AFE51-10031 Come with a Heat Shield for a 2004 Ford Escape
The aFe direct fit cold air intake system, # AFE51-10031, comes with everything you see pictured. It does not include a 16-gauge, powder coated steel heat shield that replaces the stock air box, though, because it is not required. I have included a link to the installation instructions for you. To clean the included filter, I recommend using the aFe cleaners, # AFE90-59999. These cleaners are specifically designed to clean the aFe filters.
view full answer...

Fit of aFe BladeRunner Differential Cover # AFE46-70012 on 2010 Dodge Ram 3500 Series
The correct aFe BladeRunner Differential Cover for your 2010 Ram 3500 series will depend on which motor and rear axle assembly the truck was equipped with. We lack the ability to determine how your Ram was equipped based on the VIN, but your Dodge dealer should be able to provide that information for you. I have linked to the differential covers available for the 2010 Dodge Ram.
view full answer...

Troubleshooting a Service Engine Soon Code after Installing AFE Cold Air Intake on a 2004 Ford F150
Most likely, the code has something to do with your mass air flow sensor. You should check that it is plugged in completely first and then check to see if the sensor itself is dirty. Sometimes with oil based filters oil can get drawn through the filter and get on the mass airflow sensor and cause a SES code to appear. The other issue could be the IAC, you might check to see that it is sealed and has not come unplugged. There is also the possibility you may have a vacuum leak which could cause
view full answer...

Will the aFe Silver Bullet Throttle Body Spacer # AFE46-34001 Affect Computer on 2003 Chevy 3500
According to our friends at aFe, the Silver Bullet Throttle Body Spacer you referenced is a simple bolt-on install that will require no adjustment or modification of the vehicle computer settings. The unique profile of the interior of the throttle body provides more complete fuel atomization, resulting in improved fuel economy and performance. Using this product will not harm the computer on your truck.
view full answer...

Do the aFe Air Filters Perform as Well as the K and N Air Filters for a 1999 Dodge Ram 8.0 Liter
The aFe, filter # AFE31-10056, is oil-free so that will help with the mess. This is a high flow performance filter designed to outflow the stock filter for improved horsepower and torque so it will be on par with the K and N filters. aFe does not provide performance statistics for the filter. For cleaning, I recommend the aFe cleaners, # AFE90-59999.
view full answer...

What is the Thread Size on the aFe Direct-Fit Pro Guard D2 Oil Filter, # AFE44-LF008
The checked with aFe and found that the aFe Direct-Fit Pro Guard D2 Oil Filter, # AFE44-LF008, does have 22mm x 1.5 size threads.
view full answer...

How to Clean Dry aFe Air Filters, Parts Needed
To clean this aFe Direct-Fit Superstock, Inverted Air Filter # AFE31-80202 you will need Cleaners for aFe Pro Dry S Air Filter # AFE90-59999. I attached installation instructions for this product for you to check out also.
view full answer...

How To Install an aFe Air Filter on a 2009 Volkswagen Jetta
To change the air filter on your 2009 Volkswagen Jetta you are going to need a few tools. You will need a Phillips screwdriver, slotted pliers and a Torx 15 driver. First step is to remove the torx screws holding the cover to the intake. Once those are removed you will be able to separate the intake from the engine cover you will need to pry up on the engine cover to get it to free itself from the engine. The best way to do this is to start on one corner and pull up on it until it is free
view full answer...

Is Tuning Required on a 2007 Ford Mustang GT 4.6 Liter After Installation of a Pro Dry S Air Intake
The aFe Pro Dry S Direct Fit Cold Air Intake System, # AFE51-10292, will not require special engine tuning if you are installing it on a factory stock 2007 Ford Mustang. If you were to upgrade to a larger throttle body spacer, like the aFe Silver Bullet direct-fit throttle body spacer, # AFE46-33006, the Pro Dry S filter will still fit. This spacer is about 1 inch thick. If you used another brand of throttle body spacer that is over 1 inch thick that could cause a fit issue.
view full answer...

Is there a Limit to How Many Times an aFe Dry Filter Can be Washed and Reused
There is no specific amount of times the aFe Direct-Fit Pro Dry S Performance Air Filter, # AFE11-10004, can be washed and reused provided you adhere to the instructions for cleaning it. If the filter becomes damaged or can no longer remain clean even after washing that is a sign it will need to be replaced. I recommend using only the aFe Cleaner, # AFE90-59999 to clean the filter. It is recommend for use every 25,000 to 30,000 miles.
view full answer...

When AFE Scorcher Programmer # AFE77-42001 is Removed Can Dealer Tell it was Installed
According to our friends at AFE, once the Scorcher Performance Programmer is used to reset the vehicle to stock parameters and the programmer is removed, there will be no trace left that the programmer was used. Keep in mind that consumers of aftermarket automotive products are protected by the Federal Magnusson-Moss Warranty Act. The Act states that if something breaks on your vehicle and you take it in for warranty repair, the dealer must honor your warranty unless whatever modifications yo
view full answer...

Order Tracking
Shipping Information
Contact Us
About Us

Help Videos and Articles
Search
Privacy Policy
Your Account Login