BMW M140I M240I B58 2015 – 2019

Tommy Munro • November 28, 2022

Stock 340 – 360bhp / 280 – 305whp /  500nm

Stage 1 430 – 450bhp / 365 – 385whp/ 600nm

Stage 1 Options (Requires only Engine Mapping)
  •  Engine Mapping Inhouse or remote via BM3/ MHD
  • Gearbox XHP Software  (Not Required)
  • ECU Unlock £90 (For 2017-2019) Included Free with Engine mapping


Stage 2 450 – 470bhp / 385 – 400whp 650nm 

Stage 2 Options (Exhaust Modification Required)
  •  Engine Mapping Inhouse or remote via BM3 / MHD
  • Gearbox XHP Software (Recommended)
  • ECU Unlock £90 (For 2017-2019) Included Free with Engine mapping
  • Decat Downpipes 

Stage 2+ (TU HPFP) 470 – 500bhp/ 400 – 425whp 700nm

Stage 2 Options (Exhaust  & Fuel pump Modification Required)
  •  Engine Mapping Inhouse or remote mapping available via BM3 or MHD
  • Gearbox XHP Software (Recommended)
  • ECU Unlock £90 (For 2017-2019) Included Free with Engine mapping
  • Decat Downpipes 

Stage 3+ 500 – 1000bhp / 410 – 850whp 900+nm

Stage 3 Options (Requires Uprated Turbos)
  •  Engine Mapping Inhouse or remote via BM3 / MHD
  • Gearbox XHP Software (Required)
  • ECU Unlock £90 (For 2017-2019) Included Free with Engine Mapping
  • Additional Maps £400 (BM3 Required) 

Arguably one of the best engines ever produced by BMW… The B58 at time of writing there is three main variations of this engine but the one we see most is the first version. This is a very capable engine with great power capabilities in without need to swap internals. It is not uncommon to see 800bhp from a stock engine mated with hybrid turbo, uprated fuel pump & methanol. 

It is usual whilst tuning these to upgrade and gap the spark plugs to NGK 94201 as stock plugs can misfire under increased power from tuning. For those looking for more power than Stage 2 its very common to see stage 2+ which is stage 2 with an upgraded fuel pump and can see circa of 500 bhp.

Whilst tuning options like Cold Start, Speed Limiter, Burbles on Sport mode can be configured






140i grey

 

Stage 1 remap requires no physical changes to be made to the car this is software only and sees a huge gain in performance from standard power.

 

Stage 2 remap requires exhaust modifications, whether sports cat, decat & on newer models OPF/ PPF removal. At this power gearbox mapping is recommended also. 

stage 2 m40i
140i

Stage 3 packages consist of upgraded HPFP (high pressure fuel pump) usually in the form of a Dorsch or a later B58tu pump and a hybrid turbo such as a pure 800 or pure 850. With the addition of methanol or ethanol we are seeing north of 700 bhp comfortably on these cars.

 This M140i has Pure 800 turbo, Dorsch hpfp, Downpipe, Torqbyte methanol kit & wavetrac Diff with our custom mapping via BM3 

draggy b58