BMW M135i 235i M235i M2 335i 435i 335i 535i X3 X4M40i X4 X5 X6 M2 N55 BM3 Tuning Package
Williams Performance are now making it easier to select the correct parts to take your car N55 to the next level!!!
Each tuning package revolves around the Pro Tuning Freak's Bootmod3 BMW ECU flashing software. The standard license includes the BM3 software, data logging, fault code reading/deleting, flash options and one map of your choice. There is also the option to add the OTS map pack to give your access to every OTS map of every fuel grade (please include VIN number for this option).
Then select whether you require a downpipe and /or an upgraded intercooler to go with your BM£ software
Please see our other listings for spark plugs if required. Many people upgrade the spark plugs then regap them to 0.5mm. Please let us know if you require them being regapped. We have the NGK 97506
https://williamsperformance.co.uk/search?q=spark+plugs
We also have the ITG ProFilter available for the N55
And as always, a free ENET cable is included with every BM3 license!!!