15/10/2026
[GRIMACE BUILD] Chapter 4: The Single Turbo Transformation š
With Grimaceās forged 3.4L S58 assembled and the drivetrain upgraded, itās time for one of the most anticipated stages of our journey towards 1,500HP.
Weāre going BIG SINGLE! š
BMWās factory twin-turbo arrangement makes way for a Garrett G45, finished in custom Techno Violet and supported by a Pulsar T4 twin-scroll manifold, twin GFB EX44 wastegates and an RK Autowerks billet intake manifold.
For the extensive custom fabrication, we teamed up with our good friends Haks and Arthur at Performance Exhaust Centre, bringing over 40 years of combined experience to the project.
Their work includes a massive 4½-inch stainless steel downpipe, 4-inch AES exhaust dump valve, twin screamer pipes and custom aluminium charge piping, all integrated with our existing WERKE midpipe and CS titanium exhaust.
Another major milestone in Grimaceās transformation, and one step closer to bringing this monster back to life! š
š Want the full technical breakdown?
Chapter 4 is now live, featuring detailed photography, component specifications and the complete transformation video.
š Read Chapter 4 here: https://eurowerke.com.au/grimace-build-series-chapter-4-the-single-turbo-transformation/
Next up: Chapter 5 ā Everything Behind the Power. āļø
The supporting systems that bring the entire package together.
In collaboration with our trusted partners:
RK Autowerks | 5150 AutoSport | Pulsar Turbo Systems | TunePlus | Wagner Tuning | ProTuning Freaks | xHP Flashtool | Performance Exhaust Centre | Precision Raceworks | Mainline Dyno
Interested in building your S58?
š (02) 9899 6618
š± 0488 847 155
š§ [email protected]
š www.eurowerke.com.au
EuroWerke ā Sydneyās BMW M & S58 Performance Specialists.