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K&N Performance Cotton Air Filters for the Audi A4/S4/RS4

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Replace your standard paper air filter with any one of these cotton performance air filters below.

 

They help your engine breathe and run much better by helping pass through more cleaner air and they all come with a 1 million mile warranty so should last the lifetime of the car.

 

These cotton air filters are much better at keeping out the dirt and dust so will help keep your engine running at its maximum performance.

 

The cotton air filters are direct replacements so just remove your old air filter. Fit the new one back the same way. Job done.

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Audi A4/S4/RS4 - K&N air filter

£55

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Jetex Performance Cotton Air Filters for the Audi A4/S4/RS4

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Audi A4/S4/RS4 - Jetex air filter

£42

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BMC Performance Cotton Air Filters for the Audi A4 - S4 - RS4

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Each air filter is composed of layers of special cotton gauze soaked with low viscosity oil for better filtration efficiency without compromising air flow penetration.

 

The filter is covered with an epoxy coated alloy mesh to ensure protection from petrol fumes and oxidization due to air humidity.

 

BMC air filters give better performance to the engine, both in terms of power and torque without compromising reliability.

 

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Audi A4/S4/RS4 - BMC air filter

£45

BMC CDA Induction Kit for the Audi A4

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The BMC Carbon Dynamic Airbox induction kit is made up of a carbon fibre airbox containing a unique filtering element.

 

The carbon fibre airbox acts as a heatshield to keep the heat out so that the induction kit performs at its highest peak at all times.

 

The kit also contains a flexible aluminium tube, which you direct to a frontal air intake on your car to enable constant air flow through the induction kit, into the engine.

 

Fresh air is channeled in to the engine through the filter and air flow deflector with minimum loss of power. By increasing the airflow at a speed and capacity greater than your standard airbox, the engine performance and torque are increased.

 

The induction kit simply replaces your standard air box so the kit is very easy to fit and comes complete with all fittings needed.

 

Audi A4 - 1.8 - BMC CDA induction kit          

 

Audi A4 - 1.8T - BMC CDA induction kit    

 

Audi A4 - 1.9 TDI - BMC CDA induction kit  

 

Audi A4 - 2.5 TDI - BMC CDA induction kit    

 

£199

 

£199

 

£230

 

£199

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Green Cotton Performance Cotton Air Filters for the A4 - S4 - RS4

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Direct replacement for your cars original paper air filter

 

Improves engine air flow by up to 40% which leads to an improved and smoother power delivery

Audi A4/S4/RS4 - Green Cotton air filter  

£49

K&N 57i Induction Kits for the Audi A4 - S4 - RS4

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When you fit a K&N 57i intake kit, you will notice the difference the next time you drive your vehicle. The kits are a great way, and in many cases the only way, to maximize airflow and engine performance. They replace the factory air box providing both High-Flow air filter technology and a larger air filter size. This winning combination will increase horsepower and sound great too.

 

Each kit is designed to provide power throughout the RPM range.

 

All kits fit straight onto the car with no modifications needed, so are very easy to fit

Audi A4 - 1.6 (petrol) - K&N 57i induction kit                  

 

Audi A4 - 1.8 (petrol: turbo) - K&N 57i induction kit        

 

Audi A4 - 1.8 (petrol: non turbo) - K&N 57i induction kit  

 

Audi A4 - 1.9 (diesel) - K&N 57i induction kit                

 

Audi A4 - 2.4 (petrol) - K&N 57i induction kit                  

 

Audi A4 - 2.5 (diesel) - K&N 57i induction kit            

 

Audi A4 - 2.8 (petrol) - K&N 57i induction kit                

 

Audi S4 - K&N 57i induction kit                              

 

Audi RS4 - K&N 57i induction kit                                

 

£105

 

£65

 

£105

 

£95

 

£120

 

£105

 

£120

 

£159

 

£159

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