When tuning your Z4 it is important that you get it right so follow our Z4 tuning overview and see which the best modifications are.
Available in standard form with power of upto 263bhp (depending on the year), so this goes to show the tuning potential of the Z4. From this you can increase the power from anywhere between 289.3bhp to 447.1bhp and this would take a lot more than just bolting on a massive exhaust and adding a go faster stripe.
For serious power hikes like this you would need to look at rebores, porting and polishing and add into the mix a hefty dose of forced induction.
If you have one of the lower powered Z4s you should think about an engine swap with the engine from the 263bhp Z4 Coupes. There are some star performers in the Z4 line up. With a few mods you will make yours a road scortcher rather than just a hot hatch.Your first engine modifications for your Z4 should be an induction kit, sports exhaust and fuel boost valve.
The modification that gives the biggest power gain on your car would be a fast road cam. Getting better flow through the head of the engine would reward your Z4 with more power. So get the engine head polished and ported.
The most powerful Z4 Coupe in our database offers 263 bhp. From this you can increase the power from anywhere between 289.3 bhp to 447.1bhp with mods we have outlined above.
The forced induction Z4s are around with some impressive Turbo and supercharger conversions being done. These give impressive power gains over standard but require a lot of effort to get working properly. If you have a turbo or supercharger get the intercooler uprated for even more power. The Z4s come in various power levels right up to 263bhp. On a motorsport prepared Z4 it is possible to achieve power figures of anywhere approaching 341.9bhp to 499.7bhp. But this sort of power requires some pretty heavy investment and a hell of a lot of engine work. . The Z4s handling can be dramatically improved with some choice suspension modifications. A drop of 35mm will work well on most cars, any lower and you will hit other problems.
We will be covering Z4 modifications in more detail in the future so plase bookmark this site and check back for regular updates.
We think you will appreciate the following website links that cover car tuning:
Car Modification articles with lots of tips on the pros and cons of each mod.
Car tuning Blog Blog with many topics covering all aspects of car tuning and driving.