M7 BOSCH 400cc Performance Fuel Injectors Mini - Generation One

Code: INJ-M7-400-R53
  • £420.00
  • (Delivery from £28.00)
Item in Stock | Usually dispatched within 24 hours
  • Prevent Serious Damage
  • A must for cars Running over 200 BHP
  • Increase in Performance
  • Maximize Efficiency

These M7 400 cc injectors have been tailored and designed for ( 200 + hp ) high horse power mini applications. The 400cc fuel injectors have been extensively tested to ensure optimum results and performance from your modified mini.


Standard OEM mini fuel injectors are only rated at 340cc. They pump fuel at 80% duty cycle on a standard non modified mini. When your mini has been modified and power modds applied, the stock injectors will struggle to deliver fuel and more often end up working at 100% duty cycle , which means your mini maybe running lean resulting in possible extensive engine damage.


M7 tested 440cc, 420cc, and 400cc injectors and found that both the 400cc and 440cc provided the results that they where looking for. Both injectors provided suitable power gains which suited a wider variety of applications when compared to the 420cc injectors. 


M7 use stock OEM injectors and then re build them to ensure an individual spray pattern is maintained. This ensures through fuel atomization which results in a clean burn leading to smooth idle and drivability. Often many aftermarket squirting injectors are unable to achieve this. 


We would always recommend a rolling road set up to ensure maximum efficiency and power gains are achieved specific to your mini and the tuning modifications applied.


Please note: All M7 Products are imported from the US and therefore may be subject to import charges

 At PRS Racing we don't want to charge any more than is necessary for the postage hence we charge by the weight of each product, helping to ensure cost effective shipping prices.
The following prices are based around quotes and can be subject to change. If this is the case PRS Racing reserve the right to contact you with any shipping amendments prior to shipping of your products to ensure 100% customer satisfaction. All prices are INCLUSIVE of VAT.

UK Delivery Services:

Free Delivery is 1st Class Royal mail Signed for if Under 3KG

Special Delivery is Pre 1Pm Royal Mail - if under 3KG


Next day Delivery Is Royal mail business if under - 3KG


Over 5KG DHL/UK mail next day

European Delivery

Delivery is based on weight in both the UK and Europe please allow 3 - 7 working days for delivery

0 - 0.49kg       £4.99
0.5 - 0.99kg    £5.99
1kg - 2.99kg   £6.99
3kg +              £20  (Weight Dependent)

Rest of World Delivery

International orders are worked on Volumetric weight. Please allow 4 - 10 working days for delivery

0 - 0.49kg      £9.99
0.5 - 0.99 kg  £12.99
1kg - 2.99kg  £14.99
3kg +             £25.00 (Weight Dependent)

All Parcels are shipped with a tracking number to ensure you know when to expect your order. If you have supplied us with a contact number or e mail, you can txt to re arrange the delivery with the Currier at a suitable time and date. Items that are in stock are shipped same day if the order is placed before 2pm.

PRS are committed to keeping a large stock of goods, however we cannot always guarantee that all items will be in stock at time of purchase. If your item is not in stock we will contact you informing you when to expect your item.

PRS cannot be held liable for any reasonable or unavoidable loss or damage suffered as a result of a delay in delivery.

Please Note: As a result of Brexit and the continued changes some orders my be subjected to import Tax and handling Fees. Please check first if you are unsure before placing an order.