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Most common questions we receive from potential purchasers is "how easy is it to map my car using BM3" the simple answer is it's very easy but fortunately enough one of our customers has made a video to explain and show how to map your car using BM3. Use the following link to find out more. https://youtu.be/fo2h-wbTaRw

Firstly we will start off by saying we do not recommend you try this configuration, or deliberately run insufficient octane, we do this so you do not have to! The car in question was a BMW M140i with JB4 only, with completely stock hardware. We wanted to keep variables as simple as possible, but again we wouldn't advise this set up. The JB4 was running map 7 (meth map) with the safety systems turned off. This allows you to run the higher boost without the meth flowing. Normally the JB4 would kick in if it detected low meth flow. More...

We had a customer who contacted us recently who was struggling to choose between a flash map or go down the JB4 route on his VW Golf R MK7. After a lengthy conversation about the advantages of running a JB4 which includes customisation to suit the car and mods, switchable maps which includes low torque map when using low grade octane fuel, medium torque map when using high octane fuel, stock map, valet mode which will give reduced power and custom map which can be adjusted to suit your needs and modifications including stage 2. The customer decided to take...

After running a meth powered M140i for over 2 years, it was time for a change. After test driving every performance car under the sun it was always the M2 we kept coming back to.  There is no mistaking the presence the M2 has, with is muscular front end and wide hips. It really is hard to put into words how the car makes you feel but it really is a special car to drive and to look at. We will be using this car to bring you reviews and test data of all the parts we supply, but also...

BMW M235i JB4 and Bluetooth supplied and fitted by Bolt On Mods. Equipped with the N55 engine, the M235i can produce approx 400bhp with a JB4 and supporting mods such as a decat down pipe and FMIC upgrade. The N55 JB4 has many other features as well as tuning, such as data logging, code read/write and boost by gear limits for increased traction. Bolt On Mods suggests running map 2 on a M235i with stock hardware, with the requirement of 99 RON fuel such as Tesco 99 or Shell v-Power. If you then decide to fit an upgraded FMIC and...