Honda TRX400EX TRX400X Aluminum Air Box with Lid $169.95

All CFM Performance products are proudly MADE IN USA.

This air box will fit any year Honda 400EX and 400X.

Made with 5052 series aluminum.

Brackets are made from 7075 series aluminum, the strongest aluminum alloy ever made.

This air box was designed with the cross country racer in mind as it features a water resistant lid and protects all of the electrical components by locating them inside the airbox.

This design accepts the stock Honda intake snorkel setup.

Features a bolt on lid with a neoprene rubber gasket.

This design also allows the use of aftermarket seat latches.

No modifications are required to your electrical system other that routing the wires in the box.

Does not come with a filter. Uses OEM filter, UNI or K&N filters.

Honda TRX400EX TRX400X Oil Tank $129.95

All CFM Performance items are proudly 100% made in the USA.
This oil tank is guaranteed to be the highest quality that you can get anywhere, at any price, or your money back!!!

Made 100% from american made raw materials, not cheap imported aluminum that is likely to fail from heat and vibration.

You can expect to see a temperature drop of 20 degrees F.

The only oil tank that will fit with any exhaust system.

The only oil tank that will work with any nerf bars.

Lifetime guarantee against leaks and broken drain fittings.

Broken drain fittings and leaks are common problems on cheap aftermarket oil tanks.

If you ever break a CFM tank, send it back and CFM will replace or repair it for FREE.

A leaking oil tank can ruin your riding trip and destroy your engine.

CFM Performance has been a leader in the aftermarket ATV business since 1993 so you can buy with confidence.

Will fit any year Honda 400EX and 400X.

The most efficient way to cool the oil on your Honda is by increasing the oil capacity. Our oil tank holds 10% more oil than any other aftermarket oil tank. It holds 1.25 more quarts than your stock oil tank.

Features precision machined fittings. Take a close look at the poor quality fittings on cheap tanks before you consider buying one.

Expertly TIG welded in a fixture for a professional finish, perfect fit, and a tank that will never fail. Take a good look at the poor quality welds on cheap tanks before you consider buying one.

We pressure test each oil tank at 5 times the pressure it will see in operation.

Built with 5052 series aluminum for high strength and corrosion resistance.

Brackets are 7075 series aluminum. The strongest aluminum alloy ever made.


Honda TRX400EX TRX400X Air Box without Lid $119.95

All CFM Performance products are proudly MADE IN USA.

This air box will only fit 400EX and 400X 1999-2007 models .

This airbox allows you to relocate the battery, starter solenoid, voltage regulator and wiring to the inside of the airbox where it is protected from rocks, mud, etc.

The picture shows the starter solenoid bracket mounted above the filter. We have relocated it lower in the airbox to make more room for the air filter.

Does not come with a filter. Works with any filter available for the stock air box.

Built from 5052 series aluminum for strength, good looks and corrosion resistance.

All brackets are made from 7075 series aluminum, the strongest aluminum alloy ever made.

All hardware is stainless steel with Nylok retaining nuts.

Makes your Honda look much cleaner and centers the weight of the battery in the chassis for better handling.

No modifications are required to your stock wiring.

You will need to cut the rubber tube that goes from the carb to the air box in order to remove the section that goes to your stock snorkel. It is not needed for this air box.

Honda TRX400EX TRX400X Exhaust Tip  $39.95

It comes with a stainless steel spark arrestor screen and stainless steel mounting bolts. The open area of our exhaust tip is over five times greater than the stock piece, which dramatically increases the flow of your exhaust system. More power, better sound and hundreds of dollars cheaper than an aftermarket silencer, the CFM Performance high flow exhaust tip.
Honda TRX400EX Scoop Kit  $39.95

New set of CFM Performance shrouds for the Honda TRX400EX, model years 1999 through 2004. Built with .083 thick, satin finish 5052 series aluminum for strength, good looks and corrosion resistance. We have seen a decrease in operating temperature of 4-6 degrees.
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Oil Tank with Cooling Tubes and Screen fitting 400EX 400X TRX400X CFM   $189.95

All CFM Performance items are proudly 100% made in the USA.

This oil tank is guaranteed to be the highest quality that you can get anywhere, at any price, or your money back!!!

Our own original design.

Made 100% from american made raw materials, not cheap imported aluminum that is likely to fail from heat and vibration.

You can expect to see a temperature drop of 40 degrees F. ( Our standard oil tank with no tubes produces a temperature drop of 20 degrees F.)

Allows air to flow through the oil tank to cool the engine.

The only oil tank that will fit with any exhaust system.

The only oil tank that will work with any nerf bars.

Lifetime guarantee against leaks and broken drain fittings.

Broken drain fittings and leaks are common problems on cheap aftermarket oil tanks.

If you ever break a CFM tank, send it back and CFM will replace or repair it for FREE.

A leaking oil tank can ruin your riding trip and destroy your engine.

CFM Performance has been a leader in the aftermarket ATV business since 1993 so you can buy with confidence.

Will fit any year Honda 400EX and 400X.

This oil tank holds 1 more quart than your stock oil tank.

Features precision machined fittings. Take a close look at the poor quality fittings on cheap tanks before you consider buying one.

Expertly TIG welded in a fixture for a professional finish, perfect fit, and a tank that will never fail. Take a good look at the poor quality welds on cheap tanks before you consider buying one.

We pressure test each oil tank at 5 times the pressure it will see in operation.

Built with 5052 series aluminum for high strength and corrosion resistance.

Brackets are 7075 series aluminum. The strongest aluminum alloy ever made.

This oil tank uses all of your stock lines, drain plug, dip stick and mounting hardware. No extra items to buy. No modifications are required.

This oil tank comes with a fitting on the tank that allows you to use the fitting from your stock tank that has the screen in it.





Aluminum Oil Tank with Cooling Tubes    $179.95

All CFM Performance items are proudly 100% made in the USA.

This oil tank is guaranteed to be the highest quality that you can get anywhere, at any price, or your money back!!!

Our own original design.

Made 100% from american made raw materials, not cheap imported aluminum that is likely to fail from heat and vibration.

You can expect to see a temperature drop of 40 degrees F. ( Our standard oil tank with no tubes produces a temperature drop of 20 degrees F.)

Allows air to flow through the oil tank to cool the engine.

The only oil tank that will fit with any exhaust system.

The only oil tank that will work with any nerf bars.

Lifetime guarantee against leaks and broken drain fittings.

Broken drain fittings and leaks are common problems on cheap aftermarket oil tanks.

If you ever break a CFM tank, send it back and CFM will replace or repair it for FREE.

A leaking oil tank can ruin your riding trip and destroy your engine.

CFM Performance has been a leader in the aftermarket ATV business since 1993 so you can buy with confidence.

Will fit any year Honda 400EX and 400X.

This oil tank holds 1 more quart than your stock oil tank.

Features precision machined fittings. Take a close look at the poor quality fittings on cheap tanks before you consider buying one.

Expertly TIG welded in a fixture for a professional finish, perfect fit, and a tank that will never fail. Take a good look at the poor quality welds on cheap tanks before you consider buying one.

We pressure test each oil tank at 5 times the pressure it will see in operation.

Built with 5052 series aluminum for high strength and corrosion resistance.

Brackets are 7075 series aluminum. The strongest aluminum alloy ever made.

This oil tank uses all of your stock lines, drain plug, dip stick and mounting hardware. No extra items to buy. No modifications are required.