When you find the filter you want and is suitable for your car the online stock check is just above the information in the description section (circled in red). This is a realtime stock check which is directly linked to K&N’s official stock and will always accurately be able to tell you how many items are in stock 24 hours a day 365 days a year. With this feature, you can be sure that your filter is available at all times.

Ford Fiesta ST 2.0L

By far, this is the most popular kit ever and continues to make ST owners put on a beaming smile all of the time. The 57i kit is designed specifically for the Fiesta ST and will reduce the heavy restrictions which the factory airbox creates, which deadens the fun you can have when releasing the cars full potential. You can find this particular kit here on our website and is priced fantastically at £73.99

Vauxhall Corsa C

Rolling in at number 2, is the 57i kit for the Vauxhall Corsa C. These kits again, free up the restrictions which the airbox make, improve torque output and acceleration of the car. You can find these here on our website and are priced at £69.99.

Ford Fiesta Mark 6.

Receiving the bronze award, is the kit for the Ford Fiesta Mark 6 (excluding the ST). This kit is suitable for the 1.25L, 1.4L & 1.6L models of the car and replace the whole intake system for this car. This kit is on our website here and is priced at £62.99.

So why a 57i Induction Kit?

You may be asking why these would be better for your car? Here are some points which outrule all other options.

• Release the full potential of your car with more airflow, more torque and acceleration!
• Save on economy and fuel, remember if the engine is working less hard to make the same power, you’re using less fuel and saving more money!
• Never buy another filter, simply wash a K&N filter in the sink, let it dry, oil it and you’re good to go all over again!
• Deep induction roar will make heads turn and notice you. Be the centre of attention!
• Chrome topped filters give your engine bay a classic finishing touch and stand out from the usual plastic drab.

Grab your 57i Induction kit with our free 48 hour delivery service with DHL couriers.

Some like it, some don’t, but there’s no denying that Subaru have still produced a highly performing car. At K&N, there has been a nice new addition for the collection of 2008+ Impreza’s which has been dyno proven to deliver roughly 17BHP more over the standard intake!

If this kit interests you at all, just fire an email over to us and we’ll be able to sort a kit out for you!

Here at Performance Filters we like to help everyone out, so we’re offering a time-limit-less club & forum opportunity. If you along with your friends are interested in any K&N product, you can just send us an enquiry through our “contact us” page and we’ll be sure to help you out.

Our breakdown of discount for clubs & forums is as follows:

• 10 kits = 5% off
• 20 kits = 10% off

Pretty simple concept aye? This can be for a range of K&N products as well, for different manufactures, models, filter types etc. So if you have 6 panel filters + 4 induction kits, you still get 5% off etc. We are willing to give more money off for more orders etc as this is just an outline of what’s on offer.

So, if you’re interested and feel like taking part in an opportunity to do a group buy, don’t hesitate to contact us and we’ll be more than happy to help you out!

Simon – Performance Filters.

GBP    354.11

GBP    289.61

GBP    289.61

RRP  £44.51

The 57S Performance Airboxes are brand new T.U.V. compliant intake systems developed by K&N, the inventor of the Million-Mile High-flow air filter. These systems increase horsepower and acceleration by dramatically reducing air flow restriction caused by the original factory design.

A K&N 57S completely replaces the factory air box and air filter with upgraded high quality components. A 57S uses a fully enclosed air box assembly with a removable lid for easy access to the filter when cleaning is required.

This innovative design delivers extra power and complies with the latest TUV emissions and sound suppression regulations. The 57S air box is injection molded for extra strength, consistency and durability. The 57S assembly is large enough to house an oversized conical K&N High Flow air filter and the entire product is backed by our Million Mile Limited Warranty.

By reducing both air filter and air box restriction, these systems provide up to three times the power gains available with a K&N replacement air filter that go into the factory air box. The weakest link in the airflow “chain” robs a vehicle of its natural horsepower. Often that weak point is the factory air box itself, a problem K&N has solved with the 57S.

GUARANTEED HORSEPOWER

We will not sell a 57S system that does not provide a measured increase in horsepower and torque (Acceleration). Each system is proven to increase vehicle power at the wheels on a dynamometer (think treadmill for cars). These thoroughly engineered systems provide huge increases in power that a customer should feel when they accelerate. Typical gains on an 4 cylinder vehicle range between 4 and 7 horsepower. We have even tested engines that provide  as much as 11 extra horsepower.

SOUNDS COMPLICATED?

Nope. That’s the great part, these systems are easy to install. A typical installation can be done with a screwdriver, pliers and a ratchet set in 30 minutes. That’s because we specifically engineer the kits to use factory holes and mounting points so they do not require any cutting or drilling. Our 57S Airbox is factory preassembled and custom designed for specific vehicles to fit right into the engine compartment.

TUV COMPLIANT

Every K&N 57S Performance Airbox complies with TUV regulations governing emissions and sound levels. Each system has been submitted for testing and certified before being released for sales. So you have confidence that your 57S will deliver power without any worry about vehicle regulations.

THE WORLD’S FIRST MILLION-MILE WARRANTY

K&N invented the world’s first air filter guaranteed for one million miles. That same warranty stands behind our 57S Performance Airbox. Engineered with care and passion, these systems are built to last for the life of your car. We stand behind them completely.

SPECIFICATIONS

Our 57S Performance Airboxesare injection molded from the same materials use in OE air boxes. Once installed, you will have a performance system with an “OE” look that looks as good as it performs. A 57S comes factory preassembles and has a removable lid to make servicing the washable air filter simple.

Inside the 57S is the largest conical shaped High-Flow air filter we could fit into the system while still using factory holes and mounting points. This extra filter size provides even more airflow at lower restriction than a standard K&N O/E replacement filter that is limited to the size of the factory air box. The oversize air filter also captures and holds more dirt increasing the service life before a cleaning is required to 100,000 miles under normal on-highway driving conditions.

The air box assembly is connected to the engine with adapters made from high strength materials such as silicon and reinforced nylon that ensures long life. Put all this together and you have the best T.U.V. compliant high-flow intake system available.

The first part number 57S-9500 has just been released  and has a MSRP of £169 + VAT, allowing it to enjoy a retail pricing point below £200. It’s a direct replacement for VAG group petrol engine vehicle applications, the diesel engine version 57S-9501 will follow in August 2009.

For more information on listings, prices and availability please visit our online store