Injection Tuning Kits

At Mini Sport, our comprehensive range of Mini Tuning Kits includes a selection of highly acclaimed Injection Tuning Kits for Classic Mini, designed to offer over 45% power increase in all Classic Mini models. Our Stage 3 SPi and Stage 3 MPi Tuning Kits have been specifically developed to achieve significant power increase, improved acceleration and more efficient fuel consumption – transforming your Mini into a livelier, smoother and more responsive motor for an exceptional Mini driving experience.

Our Injection Kits include a range of Mini Sport, precision engineered parts with a Stage 3 modified cylinder head, an alloy roller tip rocker assembly, superflow exhaust system, performance air filter, Maniflow injection LCB exhaust manifold, performance spark plugs and cylinder head gasket set.

Mini Sport recommend that following a conversion, a trip on the Mini Sport Rolling Road will help diagnose power and correct emissions. Our expert technicians are also able to fit your complete conversion kits in our equipped Service Centre

Browse our complete Injection Tuning Kit range for Classic Mini and please don’t hesitate to get in touch with a member of the helpful Mini Sport team on 01282 778731 or alternatively send an e-mail to if you require further advice or information. 


9 Items

per page
Set Descending Direction
  1. John Cooper 1275cc SPi 82bhp Conversion
    £2,451.84 £2,043.20 Regular Price £2,591.29
  2. John Cooper Mini 1.3i MPi 85bhp S Works Conversion
    £2,728.45 £2,273.71 Regular Price £2,886.35
  3. Stage 3 Tuning Kit - 1275 MPi - 90bhp
    £2,103.66 £1,753.05 Regular Price £2,219.90
  4. Stage 3 Tuning Kit - 1275 SPi - 85bhp
    £1,950.82 £1,625.68 Regular Price £2,056.86
  5. Air Box Induction Kit - S Works Mini MPi
    Special Price £158.58 £132.15 Regular Price £169.15
  6. Billet Alloy Induction Kit - S Works Mini MPi
    Special Price £145.39 £121.16 Regular Price £155.09

9 Items

per page
Set Descending Direction