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K&N Filters Universal Air Box

  • Provide Excellent Power Ratings
  • A Choice Of Size Available
  • Blank Base Which Can Be Cut To Suit
NOW £139.18 INC VAT £115.98 EX VAT
Product Details

Universal air boxes from K & N are a range of air boxes with excellent power ratings. The base is supplied blank and can easily be cut to you requirements whilst the carbon look top plate simply clips together with the filter element and base plate. The filters are 450mm (L) x 150mm (W) and available in a choice of heights to suit your power rating. Please see below for choice of heights and power ratings.

  • 51mm - 220bhp
  • 62mm - 265bhp
  • 75mm - 325bhp
  • 100mm - 500hp

Please select your required option from the drop down box.


Brand K&N Filters
MPN 56-9187-1, 56-9186-1, 56-9188-1, 56-9192-1

Customer Reviews
Delivery & Returns

UK Mainland Delivery Prices

Delivery TypeCostEstimated Delivery Time
Standard Delivery from £0.59 2-3 working days from day of despatch
Express Delivery from £0.83 Order before 4.30pm Monday to Friday for next working day or weekend delivery
Special Delivery from £11.94
Click & Collect from £5.94 Collect your parcel from a local post office. 2 - 3 working days from day of despatch

For international shipping please visit our delivery page.

For information about returning an item please visit our returns page.


how do I apply for finance?

1. Choose your products

Fill your basket with at least £250 of products and check if finance is applicable! If it’s not, you could try adding additional products or changing your selections.

2. Select finance at checkout

When selecting your payment option, choose ‘finance’ and customise your finance to suit you - choose how long you’d like it for and which deposit option you’d like.

3. Apply in just 2 minutes!

You will be redirected to our finance provider, V12 Retail Finance, who will guide you through the simple 2 minute application to apply for your finance!

Please note finance is only available on UK orders.

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