Our most popular product, hands down! Simple software upgrades (user installable) can yield big power gains by optimizing the fuel mapping and ignition timing.

Our dyno tuned engine performance chips developed by TMS and software expert Jim Conforti. Adding a performance chip to your car is the easiest, most cost effective way of increasing your BMWs performance with NO downsides.

TMS performance chips are supplied with detailed instructions and are user installed in about an hour. All chips are warranted for as long as you own your BMW and also come with a 30 day performance guarantee; if for any reason you are not fully satisfied with the increase in power and overall drive-ability you can return the chip to us for a full refund.