This might be one of the most anticipated stage 3 tunes we have ever developed for an engine, specially because it retains the road car attributes to stay fully road legal including oem exhaust system and cats, under the bonnet is also very unassuming, great for those that just want performance without the extreme change of looks.
We really have put some serious time into this tune to make sure it can reliably deliver performance on day after day after day without affecting reliability or even drivability.

Typical silky smooth BDS drivability along with a Power delivery that isn’t short of impressive, that is what you can expect from this stage of tune, making it perfect even for a daily use. We also continuously developing and improving so even when you come for a service with us you might even get an update on the calibration software, If you already a BDS costumer you will know this for sure along with the great service we always offer to all our costumers.

To those that seek further performance this is not the ultimate performance pack, we currently developing further and testing on motorsport application, if you follow us on social media you will be aware of our n52 powered z4

What is included on the stage 3?
BDS airbox with high quality ITG air filter (Carbon version also available)
Intake elbow with 90mm maf housing and connectors*
BDS intermediate valvetronic arms
Dyno testing prior and after
Custom ecu calibration always done on rolling road
A great Team of very passionate people awaiting your arrival
Big smiles for miles

*Option on stock airbox will not run the 90mm maf housing, it will use our ITG inbox airfilter setup and our 80mm intake elbow

What’s not included?
Consumables that might be required to complete the job or are in need of replacement. ex gaskets, bolts, seals. we also recommend a service if no service history is known.

Due to the Change in valve and lift duration with this stage of tune idle and very light load bellow 1000rpm might not be as smooth as on standard setup


video of acceleration vs e46 m3
https://www.youtube.com/shorts/I9heQREhvyg